abstracts.json

[
    {
        "abstract_number": 5,
        "abstract_submitted": "2016-01-22 11:44:02",
        "abstract_status": "accepted:oral",
        "registration_number": 28,
        "registration_submitted": "2016-04-12 09:11:59",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Bayode",
        "last_name": "Owolabi",
        "email": "sgbowola@liverpool.ac.uk",
        "degree": "M.Sc.",
        "org": "University of Liverpool",
        "dept": "School of Engineering",
        "country": "United Kingdom",
        "country_code": "GB",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Experiments on low Reynolds number turbulent flow through a square duct",
        "keywords": [
            "Turbulence",
            "Wall-bounded flows",
            "Experimental techniques"
        ],
        "authors": [
            {
                "name": "Bayode E. Owolabi",
                "affil": "University of Liverpool, UK.",
                "affil_id": 0
            },
            {
                "name": "Robert J. Poole",
                "affil": "University of Liverpool, UK.",
                "affil_id": 0
            },
            {
                "name": "David J. C. Dennis",
                "affil": "University of Liverpool, UK.",
                "affil_id": 0
            }
        ],
        "affils": [
            "University of Liverpool, UK."
        ],
        "content": "Previous experimental studies on square duct turbulent flow have focused mainly on high Reynolds numbers for which a turbulence induced eight-vortex secondary flow pattern exists in the cross sectional plane. More recently, Direct Numerical Simulations (DNS) have revealed that the flow field at Reynolds numbers close to transition can be very different; the flow in this marginally turbulent regime alternating between two states characterised by four vortices. We present experimental data on the mean flow properties and turbulence statistics in both marginally and fully turbulent flow at relatively low Reynolds numbers using laser Doppler velocimetry. The switching of the flow field between two flow states at marginally turbulent Reynolds numbers is confirmed by bimodal probability density functions of streamwise velocity at certain distances from the wall as well as joint probability density functions of streamwise and wall normal velocities which feature two peaks (see figure 1).",
        "image": "images/005.png",
        "image_squared": "images/005-squared.png",
        "image_caption": "Joint probability density function of streamwise (U) and wall normal (V) velocities in marginally turbulent flow. A and B are the two flow states."
    },
    {
        "abstract_number": 6,
        "abstract_submitted": "2016-01-20 11:36:16",
        "abstract_status": "accepted:poster",
        "registration_number": 42,
        "registration_submitted": "2016-04-19 10:41:10",
        "registration_status": "expired",
        "gender_title": "Mr.",
        "first_name": "Alan",
        "last_name": "Compelli",
        "email": "alan.compelli@mydit.ie",
        "degree": "M.Sc.",
        "org": "Dublin Institute of Technology",
        "dept": "School of Mathematical Sciences",
        "country": "Ireland",
        "country_code": "IE",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "On the dynamics of internal waves in the presence of currents",
        "keywords": [
            "Applied fluid dynamics",
            "Geophysical flows",
            "Wave-Current Interactions"
        ],
        "authors": [
            {
                "name": "Alan Compelli",
                "affil": "Dublin Institute of Technology",
                "affil_id": 0
            },
            {
                "name": "Rossen Ivanov",
                "affil": "Dublin Institute of Technology",
                "affil_id": 0
            }
        ],
        "affils": [
            "Dublin Institute of Technology"
        ],
        "content": "A 2-media 2-D fluid system is examined consisting of a lower medium, bounded underneath by a flatbed, and an upper medium with wind generated surface waves but considered bounded by a lid by an assumption that these waves have negligible amplitude. Both media are considered incompressible. An internal wave, driven by gravity, acts as a free common interface between the media. A depth-dependent current exists such that it is zero at the flatbed, negative at the lid and there is constant vorticity (both zero and non-zero are considered) in the strip adjacent to the internal wave. The current is arbitrary in the layers outside of the strip. \\\\A Hamiltonian formulation is presented in terms of the variables associated with the wave in the strip. The resultant equations of motion show that wave-current interaction is not influenced by the current profile outside of the strip.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 7,
        "abstract_submitted": "2016-01-20 16:13:16",
        "abstract_status": "accepted:poster",
        "registration_number": 15,
        "registration_submitted": "2016-04-02 10:08:46",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Lalaoua",
        "last_name": "Adel",
        "email": "lalaouaadel@gmail.com",
        "degree": "M.Sc.",
        "org": "University of Sciences and Technology- Houari Boumediene",
        "dept": "Laboratory of Thermodynamic and Energetic System",
        "country": "Algeria",
        "country_code": "DZ",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Laminar-turbulent transition and wavenumber selection in a combined Taylor-Couette configuration",
        "keywords": [
            "Applied fluid dynamics",
            "Computational methods",
            "Flow transition and instability"
        ],
        "authors": [
            {
                "name": "Lalaoua Adel",
                "affil": "Faculty of Physics, Laboratory of Thermodynamic and Energetic System, University of Sciences and Technology- Houari Boumediene",
                "affil_id": 0
            },
            {
                "name": "Merah AbdElkerim",
                "affil": "Faculty of Physics, Laboratory of Thermodynamic and Energetic System, University of Sciences and Technology- Houari Boumediene",
                "affil_id": 0
            },
            {
                "name": "Chaieb Zoubir",
                "affil": "Faculty of Physics, Laboratory of Solutions Solid, University of Sciences and Technology- Houari Boumediene",
                "affil_id": 1
            }
        ],
        "affils": [
            "Faculty of Physics, Laboratory of Thermodynamic and Energetic System, University of Sciences and Technology- Houari Boumediene",
            "Faculty of Physics, Laboratory of Solutions Solid, University of Sciences and Technology- Houari Boumediene"
        ],
        "content": "Due to the various flow patterns occurring before the onset of turbulent flow, the Taylor-Couette flow system is widely studied to investigate the instability and transition. The present work presents numerical calculations of Taylor-Couette flow where the outer cylinder is a regular straight cylinder, but the inner cylinder has a tilted, conical shape. The fluid motion is investigated numerically using CFD simulations. The apex angle between the inner conical cylinder and the outer right cylinder is varied between 0 and 12. Computations for the onset of Taylor vortices in the classical configuration with straight cylinders show good agreement with experimental data. For the case of a conical inner cylinder, calculations show a decrease in the critical Taylor number for the onset of the first instability with the apex angle. It is found that the gap width varies in height, and the Taylor vortices then vary in size, being large where the gap is wide, and small where the gap is narrow.",
        "image": "images/007.png",
        "image_squared": "images/007-squared.png",
        "image_caption": "Figure 1: Flow patterns for different cone angles on the outer cylinder/ Streamlines in ($\\vartheta$, z) plane"
    },
    {
        "abstract_number": 8,
        "abstract_submitted": "2016-01-22 02:25:56",
        "abstract_status": "accepted:oral",
        "registration_number": 11,
        "registration_submitted": "2016-03-30 22:28:54",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Shibo",
        "last_name": "Wang",
        "email": "shibo.wang@monash.edu",
        "degree": "M.Sc.",
        "org": "Monash University",
        "dept": "Mechanical and Aerospace",
        "country": "Australia",
        "country_code": "AU",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "On the Suitability of Scale-Adaptive Simulation to Predict High-Speed Train Slipstream",
        "keywords": [
            "Aerodynamics",
            "Computational methods",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Shibo Wang",
                "affil": "Mr.",
                "affil_id": 0
            },
            {
                "name": "James R. Bell",
                "affil": "Dr.",
                "affil_id": 1
            },
            {
                "name": "David Burton",
                "affil": "Mr.",
                "affil_id": 0
            },
            {
                "name": "Astrid Herbst",
                "affil": "Dr.",
                "affil_id": 1
            },
            {
                "name": "John Sheridan",
                "affil": "Prof.",
                "affil_id": 2
            },
            {
                "name": "Mark C. Thompson",
                "affil": "Prof.",
                "affil_id": 2
            }
        ],
        "affils": [
            "Mr.",
            "Dr.",
            "Prof."
        ],
        "content": "Slipstream is defined as the induced airflow caused by the high-speed train (HST) movement, which can cause safety hazards and damage concerns. Therefore, much effort has been invested to numerically predict the slipstream. As the flow over a HST is highly turbulent, a Scale-Resolving Solver (SRS) is essential to accurately capture the dynamic flow features: for example, Large-Eddy Simulation (LES) and Detached-Eddy Simulation (DES). In comparison to the Reynolds-Averaged Navier-Stokes (RANS) simulations, both LES and DES are computationally demanding, especially LES, which is rarely used for real-life industrial flows. This study aims to evaluate the capability of a relative new turbulence model, Scale-Adaptive Simulation (SAS), to predict HST slipstream, which is less computationally demanding than conventional SRSs. The present research systematically studies the performance of SAS under different time-steps, and the results are compared with DES predictions and experimental data.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 9,
        "abstract_submitted": "2016-01-22 10:25:02",
        "abstract_status": "accepted:poster",
        "registration_number": 32,
        "registration_submitted": "2016-04-15 07:42:17",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Vladimir",
        "last_name": "Parfenyev",
        "email": "parfenius@gmail.com",
        "degree": "M.Sc.",
        "org": "Landau Institute for Theoretical Physics",
        "dept": "",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Nonlinear generation of vorticity by surface waves",
        "keywords": [
            "Surface Waves",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Parfenyev V.M.",
                "affil": "Landau Institute for Theoretical Physics",
                "affil_id": 0
            },
            {
                "name": "Vergeles S.S.",
                "affil": "Landau Institute for Theoretical Physics",
                "affil_id": 0
            },
            {
                "name": "Lebedev V.V.",
                "affil": "Landau Institute for Theoretical Physics",
                "affil_id": 0
            },
            {
                "name": "Filatov S.V.",
                "affil": "Institute of Solid State Physics",
                "affil_id": 1
            },
            {
                "name": "Brazhnikov M.Yu.",
                "affil": "Institute of Solid State Physics",
                "affil_id": 1
            },
            {
                "name": "Levchenko A.A.",
                "affil": "Institute of Solid State Physics",
                "affil_id": 1
            }
        ],
        "affils": [
            "Landau Institute for Theoretical Physics",
            "Institute of Solid State Physics"
        ],
        "content": "We demonstrate that waves excited on a fluid surface produce local surface rotation owing to hydrodynamic nonlinearity. We examine theoretically the effect and obtain an explicit formula for the vertical vorticity in terms of the surface elevation. Our theoretical predictions are confirmed by measurements of surface motion in a cell with water where surface waves are excited by vertical and harmonic shaking the cell. The experimental data are in good agreement with the theoretical predictions. We discuss physical consequences of the effect.",
        "image": "images/009.png",
        "image_squared": "images/009-squared.png",
        "image_caption": "Vorticity in a cell 50x49 mm\\textsuperscript{2} where surface waves with frequency 42.7 Hz are excited. The periods of the pattern in X- and Y-directions are equal to the wavelength."
    },
    {
        "abstract_number": 10,
        "abstract_submitted": "2016-01-22 11:31:57",
        "abstract_status": "accepted:poster",
        "registration_number": 40,
        "registration_submitted": "2016-04-18 18:18:30",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Alexandra",
        "last_name": "Filimonova",
        "email": "alexandra.m.filimonova@gmail.com",
        "degree": "M.Sc.",
        "org": "Southern federal university",
        "dept": "Institute of mathematics, mechanics and computer science",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Numerical investigation of vortex dynamics in planar geophysical flows",
        "keywords": [
            "Geophysical flows",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Filimonova A. M.",
                "affil": "Southern federal university, Institute of mathematics, mechanics and computer science",
                "affil_id": 0
            },
            {
                "name": "Govorukhin V. N.",
                "affil": "Southern federal university, Institute of mathematics, mechanics and computer science",
                "affil_id": 0
            }
        ],
        "affils": [
            "Southern federal university, Institute of mathematics, mechanics and computer science"
        ],
        "content": "An incompressible inviscid 2D geophysical fluid flows in presence of Coriolis force are considered. The problem is described by the following equations in terms of vorticity and stream function:\n\n\\(\\frac{D \\omega }{D t} \\equiv \\omega _{t}+\\psi _{y}\\omega _{x}-\\psi _{x}\\omega _{y}=0\\), \\(\\omega =-\\Delta \\psi + \\Lambda ^{2} \\psi -\\frac{1}{2} \\gamma (x^{2}+y^{2})\\).\n\nWe consider this problem in a rectangular domain with periodic boundary conditions for different values of \\(\\Lambda \\) and \\(\\gamma \\) parameters.\n\nWe propose a version of the vortex-in-cell methods based on vorticity field approximation by its values at a set of fluid particles and the stream function computation using the global Galerkin method. The dynamics of fluid particles is described by ODE system, which is solved by pseudo-symplectic integrator.\n\nWe present test calculations for classical vortex configurations, such as Lamb dipole, and some results for invesigations of Coriolis force influence on the dynamics of vortical structures.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 11,
        "abstract_submitted": "2016-01-22 12:55:39",
        "abstract_status": "accepted:poster",
        "registration_number": 39,
        "registration_submitted": "2016-04-18 18:18:30",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Ivan",
        "last_name": "Zhdanov",
        "email": "izhdanovn@gmail.com",
        "degree": "M.Sc.",
        "org": "Soutern federal university",
        "dept": "Institute of mathematics, mechanics and computer science",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Nontrivial steady-state flows of inviscid incompressible fluids in rectangular channel",
        "keywords": [
            "Wall-bounded flows",
            "Computational methods",
            "Inviscid fluids"
        ],
        "authors": [
            {
                "name": "Zhdanov I. A",
                "affil": "Soutern federal university, Institute of mathematics, mechanics and computer science",
                "affil_id": 0
            },
            {
                "name": "Govorukhin V. N.",
                "affil": "Soutern federal university, Institute of mathematics, mechanics and computer science",
                "affil_id": 0
            }
        ],
        "affils": [
            "Soutern federal university, Institute of mathematics, mechanics and computer science"
        ],
        "content": "We consider steady-state 2D flows of a inviscid incompressible fluidin a rectangular channel \\(D=\\{0 \\leq x \\leq a,  0 \\leq y \\leq b\\}\\).This problem is described by the Euler equations in terms of streamfunction \\(\\psi =\\psi (x,y)\\) and vorticity \\(\\omega =\\omega (x,y)\\):\n\n\\(\\omega _{x}\\psi _{y} - \\omega _{y}\\psi _{x}=0\\)\n\n\\(\\Delta \\psi = -\\omega \\).\n\nWe used Yudovich BC: \\(\\psi (0,y)=g_{1}(y)\\); \\(\\psi (a,y)=g_{2}(y)\\);\\(\\psi (x,0)=const\\); \\(\\psi (x,b)=const\\) with additional conditions:\\(\\int _{0}^{a} g_{1}(y) dy = \\int _{0}^{a} g_{2}(y) dy\\).\n\nWe found a big set of partial solution of this problem using Galerkinand finite-difference methods.In particular a set of nontrivial steady-state flows with stagnationzones is found and studied.\\\\The influence of channel inlet and outlet fluid velocityand a kind of functional dependency \\(\\psi (\\omega )\\) on structure ofsteady-state flows is explored.\\\\The stability of flows was also investigated. We found that regimescan be both unstable and experimentally stable.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 12,
        "abstract_submitted": "2016-01-23 11:58:36",
        "abstract_status": "accepted:poster",
        "registration_number": 9,
        "registration_submitted": "2016-03-29 12:46:39",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Karthik",
        "last_name": "Karunakaran",
        "email": "karthikkaero@gmail.com",
        "degree": "M.Sc.",
        "org": "Indian Institute of Technology Madras",
        "dept": "Department of Ocean Engineering",
        "country": "India",
        "country_code": "IN",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Numerical Computation of Flow Induced Sound From Elliptic Cylinder",
        "keywords": [
            "Aerodynamics",
            "Turbulence",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Karthik K",
                "affil": "Indian Institute of Technology Madras",
                "affil_id": 0
            },
            {
                "name": "Vengadesan S",
                "affil": "Indian Institute of Technology Madras",
                "affil_id": 0
            },
            {
                "name": "Bhattacharyya S K",
                "affil": "Indian Institute of Technology Madras",
                "affil_id": 0
            }
        ],
        "affils": [
            "Indian Institute of Technology Madras"
        ],
        "content": "The sound generated by flow past an elliptic cylinder at a Reynolds number of 97300 has been studied numerically. Three-dimensional large eddy simulations (LES) along with the Ffowcs-Williams and Hawking acoustic analogy were carried out to compute the sound pressure field. The Smagorinsky-Lilly stress model has been used for the small scales of turbulence. The aim of this research is to develop a CFD methodology for computing the flow induced sound from an elliptic cylinder with good accuracy. The validity of the proposed method is established by comparing the sound pressure spectrum at the receiver location, tonal sound pressure level (SPL\\textsubscript{T}), overall sound pressure level (OASPL) and tonal frequency (F\\textsubscript{T}) with experimental data (Fig. 1). The computed results found in good agreement with the experimental measurements, which shows that the proposed method can be used to advance the research in the future.",
        "image": "images/012.jpg",
        "image_squared": "images/012-squared.jpg",
        "image_caption": "Comparison of the numerical sound pressure level spectrum, tonal sound pressure level, tonal frequency and overall sound pressure level with the experimental result"
    },
    {
        "abstract_number": 13,
        "abstract_submitted": "2016-01-25 14:15:05",
        "abstract_status": "accepted:oral",
        "registration_number": 4,
        "registration_submitted": "2016-03-23 14:34:09",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Pietro",
        "last_name": "Servini",
        "email": "pietro.servini.14@ucl.ac.uk",
        "degree": "M.Sc.",
        "org": "University College London",
        "dept": "Department of Mathematics",
        "country": "United Kingdom",
        "country_code": "GB",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Roughing up Wings: A Promising Technique in Laminar Flow Control",
        "keywords": [
            "Aerodynamics",
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "Pietro Servini",
                "affil": "University College London",
                "affil_id": 0
            },
            {
                "name": "Frank Smith",
                "affil": "University College London",
                "affil_id": 0
            }
        ],
        "affils": [
            "University College London"
        ],
        "content": "Flying aeroplanes is expensive. And sometimes dangerous. Since Ludwig Prandtl derived the Boundary Layer Equations in 1904, fluid dynamicists---especially those working in the field of aeronautics---have been applying them to investigate ways to modify the flow near the surface of an aeroplane wing. This includes trying to prevent or advance transition to turbulence, delay separation and reduce drag: all in an attempt to cut costs and avoid aircraft stall.\n\nIn this talk we will present a promising technique in laminar flow control, first studied by Huebsch (2006), Huebsch \\& Rothmayer (2011), Grager et al. (2012), involving small oscillating roughnesses. We will see that these roughnesses show great potential for delaying or suppressing the separation of a laminar boundary layer, and will briefly investigate how they affect the flow in a condensed layer.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 14,
        "abstract_submitted": "2016-01-25 17:37:44",
        "abstract_status": "accepted:poster",
        "registration_number": 5,
        "registration_submitted": "2016-03-24 00:02:39",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Seemaa",
        "last_name": "Mohammed",
        "email": "seemaa.mohammed@plymouth.ac.uk",
        "degree": "M.Sc.",
        "org": "Plymouth university",
        "dept": "department of mathematics/ Plymouth university",
        "country": "United Kingdom",
        "country_code": "GB",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "A lattice Boltzmann model for simulating dipole wall collision using moment-based boundary conditions",
        "keywords": [
            "Applied fluid dynamics",
            "Computational methods",
            "Lattice Boltzmann method"
        ],
        "authors": [
            {
                "name": "Seemaa Mohammed",
                "affil": "Plymouth university",
                "affil_id": 0
            },
            {
                "name": "Tim Reis",
                "affil": "Plymouth university",
                "affil_id": 0
            }
        ],
        "affils": [
            "Plymouth university"
        ],
        "content": "The lattice Boltzmann equation is a relatively new numerical method for simulating fluid flow. Unlike more traditional methods,The LBE is based on a discrete kinetic description of fluid motion in which all nonlinearities are confined to algebraic source terms. This allows LBE to exploit parallel computer architectures. Another advantage of LBM is the ease with which it can incorporate boundary conditions. Boundary conditions for the LBE are usually described in terms of distribution functions. However, this introduces an additional slip error. We present the moment-method which imposes boundary conditions on the moments of the distribution function. This allows for the exact satisfaction of hydrodynamic boundary conditions precisely at gridpoints. The method is used to study the dipole-wall collision problem. We consider both normal and oblique collisions and show that predications fory quantities are in good agreement with benchmark data.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 15,
        "abstract_submitted": "2016-01-26 09:47:32",
        "abstract_status": "accepted:oral",
        "registration_number": 12,
        "registration_submitted": "2016-03-31 01:35:12",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Guangdong",
        "last_name": "Duan",
        "email": "g.duan@my.cityu.edu.hk",
        "degree": "M.Sc.",
        "org": "City University of Hong Kong",
        "dept": "School of Energy and Environment",
        "country": "Hong Kong",
        "country_code": "HK",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Sensitivity of urban flows and dispersion to time-dependent inflow perturbations",
        "keywords": [
            "Urban boundary layer",
            "Turbulence",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Guangdong DUAN",
                "affil": "School of Energy and Environment, City University of Hong Kong",
                "affil_id": 0
            },
            {
                "name": "Keith NGAN",
                "affil": "School of Energy and Environment, City University of Hong Kong",
                "affil_id": 0
            },
            {
                "name": "Ka Wai LO",
                "affil": "School of Energy and Environment, City University of Hong Kong",
                "affil_id": 0
            }
        ],
        "affils": [
            "School of Energy and Environment, City University of Hong Kong"
        ],
        "content": "Steady inflow boundary conditions are commonly used in numerical simulations of urban flows and dispersion. However, small-scale urban flows are inevitably perturbed by unsteady mesoscale meteorological fluctuations. This work investigates the sensitivity of turbulent statistics and pollutant dispersion to time-periodic perturbations. Using large-eddy simulation of a single street canyon, sinusoidal disturbances in the streamwise velocity are introduced in the vicinity of the inflow. Vertical profiles of the turbulent kinetic energy show relatively weak sensitivity to the perturbation frequency, but RMS averages reveal a complicated structure. The pollutant dispersion, which is analysed using the mean tracer age, exhibits a resonance phenomenon at perturbation periods close to the dominant frequency of the streamwise velocity. Connections with stability theory and the predictability of turbulent boundary layers are discussed. The effect of more realistic time dependence is examined.",
        "image": "images/015.jpg",
        "image_squared": "images/015-squared.jpg",
        "image_caption": "Spanwise averaged mean tracer age of the street canyon. The sinusoidal perturbation is incorporated into the streamwise velocity near the inflow region. \\(T\\) is the perturbation period; \\(\\hat{\\tau }_{a}\\) is the canyon averaged mean tracer age."
    },
    {
        "abstract_number": 18,
        "abstract_submitted": "2016-01-27 17:45:52",
        "abstract_status": "accepted:oral",
        "registration_number": 27,
        "registration_submitted": "2016-04-12 09:08:27",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Chaofan",
        "last_name": "Wen",
        "email": "wen2012@liverpool.ac.uk",
        "degree": "B.Sc.",
        "org": "University of Liverpool",
        "dept": "School of Engineering",
        "country": "United Kingdom",
        "country_code": "GB",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Investigation of transition to asymmetry in pipe flow of shear-thinning fluids",
        "keywords": [
            "Wall-bounded flows",
            "Instability",
            "Experimental techniques"
        ],
        "authors": [
            {
                "name": "Chaofan Wen",
                "affil": "School of Engineering, University of Liverpool",
                "affil_id": 0
            },
            {
                "name": "Robert J. Poole",
                "affil": "School of Engineering, University of Liverpool",
                "affil_id": 0
            },
            {
                "name": "David J.C. Dennis",
                "affil": "School of Engineering, University of Liverpool",
                "affil_id": 0
            }
        ],
        "affils": [
            "School of Engineering, University of Liverpool"
        ],
        "content": "Previous studies of shear-thinning fluids in pipe flow discovered that, although the time-averaged velocity profile was axisymmetric when the flow was laminar or fully turbulent, contrary to expectations it was asymmetric in the laminar-turbulent transition regime. We reveal that the asymmetry is not induced by the transition process, but is an instability of the laminar base state. Furthermore, the transition process is responsible for returning symmetry to the flow, which explains why the fully turbulent case is axisymmetric. The deviation from the axisymmetric laminar state is observed to develop in the form of a supercritical bifurcation with square-root dependence on Reynolds number. The asymmetry is non-hysteretic and reversible, not only having a favoured location, but a preferred route between axisymmetry and asymmetry. We also observed the greater the shear-thinning ability, the stronger the fluid asymmetry will appear",
        "image": "images/018.png",
        "image_squared": "images/018-squared.png",
        "image_caption": "Transition from axisymmetry to asymmetry: the asymmetry indicated by \\(\\alpha \\) and \\(r_{p}/D\\) grows in form of a supercritical bifurcaiton with square-root dependence on Reynolds number \\(Re_{w}\\) before the appearance of turbulent spots at \\(Re_{w}\\sim \\)8000"
    },
    {
        "abstract_number": 19,
        "abstract_submitted": "2016-01-28 08:33:19",
        "abstract_status": "accepted:oral",
        "registration_number": 8,
        "registration_submitted": "2016-03-29 08:16:59",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Cristian",
        "last_name": "Lalescu",
        "email": "cristian.lalescu@ds.mpg.de",
        "degree": "Ph.D.",
        "org": "Max Planck Institute for Dynamics and Self-Organization",
        "dept": "Max Planck Research Group \"Theory of Turbulent Flows\"",
        "country": "Germany",
        "country_code": "DE",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Characterizing multi-scale interaction in turbulence",
        "keywords": [
            "Turbulence",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Cristian C Lalescu",
                "affil": "Max Planck Institute for Dynamics and Self-Organization",
                "affil_id": 0
            },
            {
                "name": "Michael Wilczek",
                "affil": "Max Planck Institute for Dynamics and Self-Organization",
                "affil_id": 0
            }
        ],
        "affils": [
            "Max Planck Institute for Dynamics and Self-Organization"
        ],
        "content": "In fully developed turbulence, interactions take place between structures spanning a broad range of length and time scales. In this work, we aim to characterize these multi-scale interactions quantitatively. To this end, we identify the time scales relevant for structures of a given size, both from an Eulerian and a Lagrangian perspective. By employing filtering techniques in space and time, we compare turbulent velocity fields containing length scales above a given cutoff-scale with time-filtered fields. Varying the filter widths and times yields a precise picture of the various interactions. In a second step, we generalize the analysis to the Lagrangian frame to study the impact of large- and small-scale fluctuations on turbulent particle transport.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 21,
        "abstract_submitted": "2016-01-28 15:49:52",
        "abstract_status": "accepted:oral",
        "registration_number": 22,
        "registration_submitted": "2016-04-08 14:08:13",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Varadarajan",
        "last_name": "Parthasarathy",
        "email": "varada@camk.edu.pl",
        "degree": "M.Sc.",
        "org": "Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences",
        "dept": "",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Implementation of HLLD Riemann solver in PIERNIK",
        "keywords": [
            "Computational methods",
            "Magnetohydrodynamics",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Varadarajan Parthasarathy",
                "affil": "Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences",
                "affil_id": 0
            },
            {
                "name": "Artur Gawryszczak",
                "affil": "Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences",
                "affil_id": 0
            },
            {
                "name": "Michal Hanasz",
                "affil": "Toruń Centre for Astronomy  Nicolaus Copernicus University",
                "affil_id": 1
            }
        ],
        "affils": [
            "Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences",
            "Toruń Centre for Astronomy  Nicolaus Copernicus University"
        ],
        "content": "PIERNIK is a freely available, massively parallel, multi-fluid, multi-grid, magnetohydrodynamical (MHD) code. We have implemented the multi-state Harten-Lax-van Leer approximate Riemann solver for ideal magnetohydrodynamics - HLLD (\"D\" denotes Discontinuities) in PIERNIK. Our goal is to perform numerical simulations of hypersonic astrophysical flows in 1, 2 and 3 spatial dimensions, particularly in the presence of discontinuities, using the HLLD Riemann solver. The HLLD Riemann solver is more robust than the linearized Riemann solver, capable of resolving isolated discontinuities formed in the MHD system (hence named as HLLD) and corresponds to the HLLC (\"C\" denotes Contact) Riemann solver when the magnetic field vanishes. We demonstrate the robustness and accuracy of the HLLD Riemann solver implemented in PIERNIK through numerical tests and several interesting features available in the PIERNIK code.",
        "image": "images/021.png",
        "image_squared": "images/021-squared.png",
        "image_caption": "\\textbf{2D Riemann problem}: Domain: {[}(-1,1), (-1,1){]}, Resolution: {[}512,512{]}. Log plot of mass density at \\(t = 9\\)."
    },
    {
        "abstract_number": 22,
        "abstract_submitted": "2016-01-28 19:06:44",
        "abstract_status": "accepted:oral",
        "registration_number": 46,
        "registration_submitted": "2016-04-22 17:53:14",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Giovanni",
        "last_name": "Iacobello",
        "email": "giovanni.iacobello@hotmail.it",
        "degree": "M.Sc.",
        "org": "Polytechnic University of Turin",
        "dept": "Department of Mechanical and Aerospace Engineering",
        "country": "Italy",
        "country_code": "IT",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "New insights into spatial characterization of turbulent flows: a complex network-based analysis",
        "keywords": [
            "Turbulence",
            "Complex Networks",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Giovanni Iacobello",
                "affil": "Polytechnic University of Turin - Department of Mechanical and Aerospace Engineering",
                "affil_id": 0
            },
            {
                "name": "Stefania Scarsoglio",
                "affil": "Polytechnic University of Turin - Department of Mechanical and Aerospace Engineering",
                "affil_id": 0
            },
            {
                "name": "Luca Ridolfi",
                "affil": "Polytechnic University of Turin - Department of Environmental, Land and Infrastructure Engineering",
                "affil_id": 1
            }
        ],
        "affils": [
            "Polytechnic University of Turin - Department of Mechanical and Aerospace Engineering",
            "Polytechnic University of Turin - Department of Environmental, Land and Infrastructure Engineering"
        ],
        "content": "Despite much progress has been made, several mechanisms about turbulence dynamics are still unclear. We propose an innovative approach based on complex networks theory, which combines elements from graph theory and statistical physics, providing a powerful framework to investigate complex systems.The network is built on a forced isotropic turbulent field, by evaluating the temporal correlation of the kinetic energy for pairs of nodes within the Taylor microscale, \\textit{$\\lambda$}. Among all the parameters analyzed, the degree centrality, \\textit{k}, is one of the most meaningful, representing how a node is linked to the others. We observe 3D patterns of high \\textit{k} values, which can be interpreted as regions of spatial coherence. The turbulent network exhibits typical behaviors of real and spatial networks (scale-free property). Similarly to other physical systems where complex networks successfully apply, our approach can give new insights for the spatial characterization of turbulence.",
        "image": "images/022.png",
        "image_squared": "images/022-squared.png",
        "image_caption": "Network built from the JHTDB (http://turbulence.pha.jhu.edu) considering a sphere of radius \\textit{$\\lambda$}, centered in the node \\textit{C(391,391,512)}. (a) Degree centrality on a 3D view; (b) Degree centrality on a section normal to \\textit{Z-axis} and passing through \\textit{C}."
    },
    {
        "abstract_number": 23,
        "abstract_submitted": "2016-01-29 09:16:20",
        "abstract_status": "accepted:poster",
        "registration_number": 34,
        "registration_submitted": "2016-04-15 14:12:00",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Gael",
        "last_name": "Lorieul",
        "email": "gael.lorieul@uclouvain.be",
        "degree": "M.Sc.",
        "org": "Universite catholique de Louvain",
        "dept": "Institute of Mechanics, Materials and Civil Engineering",
        "country": "Belgium",
        "country_code": "BE",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Benefit assesment of Vortex-in-cell method in comparison to traditional methods for two-phase flows",
        "keywords": [
            "Multiphase flows",
            "Computational methods",
            "Vortex-in-Cell"
        ],
        "authors": [
            {
                "name": "Gaël Lorieul",
                "affil": "Universite catholique de Louvain",
                "affil_id": 0
            },
            {
                "name": "Philippe Chatelain",
                "affil": "Universite catholique de Louvain",
                "affil_id": 0
            },
            {
                "name": "Yann Bartosiewicz",
                "affil": "Universite catholique de Louvain",
                "affil_id": 0
            }
        ],
        "affils": [
            "Universite catholique de Louvain"
        ],
        "content": "Two approaches for the simulation of two-phase flows are compared : (i) a traditional velocity form of the Navier-Stokes equations discretised on a grid and (ii) a Vortex-in-Cell implementation which consists in a vorticity form of the Navier-Stokes equations expressed on particles. The fluid interface is captured using a level set method implemented with either high-order WENO5 schemes or particles. Working on vorticity should allow to reduce the size of the domain by restricting it to the regions neighbouring walls and fluid interfaces. On the other hand, discretising on particles instead of a grid waives the CFL stability constraint and hence may allow higher time step values. Those potential benefits of vorticity over velocity and particles over grid are put to the test by comparing the performance of solvers on relevant benchmarks such as the dam break and rising bubble benchmarks.\n\nFinancial support from BelV is gratefully acknowledged.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 24,
        "abstract_submitted": "2016-01-29 09:22:08",
        "abstract_status": "accepted:poster",
        "registration_number": 18,
        "registration_submitted": "2016-04-04 09:59:58",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Krzysztof",
        "last_name": "Kurec",
        "email": "kkurec@meil.pw.edu.pl",
        "degree": "M.Sc.",
        "org": "Warsaw University of Technology",
        "dept": "The Faculty of Power and Aeronautical Engineering, Institute of Aeronautics and Applied Mechanics",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Investigations on unsteady flow within a stationary passage of a pressure wave exchanger, by means of PIV measurements and CFD calculations",
        "keywords": [
            "Experimental techniques",
            "Computational methods",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Krzysztof Kurec",
                "affil": "Warsaw University of Technology",
                "affil_id": 0
            },
            {
                "name": "Janusz Piechna",
                "affil": "Warsaw University of Technology",
                "affil_id": 0
            },
            {
                "name": "Konrad Gumowski",
                "affil": "Warsaw University of Technology",
                "affil_id": 0
            }
        ],
        "affils": [
            "Warsaw University of Technology"
        ],
        "content": "This paper presents results of investigations focused on a pressure wave exchanger demonstrator, constructed at the Aerodynamics Division at Warsaw University of Technology. Main flow features of the device were analyzed and experimental data was collected in order to perform validation of CFD calculations. Three different turbulence models (Standard-k-$\\omega$, SST-k-$\\omega$ and SST-SAS) were used in simulations and tested in unsteady conditions. Data in form of: velocity field, shape and position of the contact surface between driving and driven medium, served to perform comparison between PIV measurements and numerical calculations, which revealed that the best correlation between experiments and numerical data was obtained with SST-SAS turbulence model.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 25,
        "abstract_submitted": "2016-01-29 09:32:12",
        "abstract_status": "accepted:oral",
        "registration_number": 21,
        "registration_submitted": "2016-04-08 13:29:21",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Pascal",
        "last_name": "Corso",
        "email": "corso@ifu.baug.ethz.ch",
        "degree": "M.Sc.",
        "org": "Swiss Federal Institute of Technology in Zurich",
        "dept": "Institute of Environmental Engineering",
        "country": "Switzerland",
        "country_code": "CH",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Direct Numerical Simulation (DNS) of turbulent blood flow in the thoracic aorta using OpenFOAM",
        "keywords": [
            "Aortic flow",
            "Turbulence",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Pascal Corso",
                "affil": "Institute of Environmental Engineering - ETH Zurich",
                "affil_id": 0
            },
            {
                "name": "Utku Gülan",
                "affil": "University of Zurich",
                "affil_id": 1
            },
            {
                "name": "Firat Duru",
                "affil": "University Hospital of Zurich",
                "affil_id": 2
            },
            {
                "name": "Sebastian Kozerke",
                "affil": "Institute for Biomedical Engineering - University and ETH Zurich",
                "affil_id": 3
            },
            {
                "name": "Markus Holzner",
                "affil": "Institute of Environmental Engineering - ETH Zurich",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute of Environmental Engineering - ETH Zurich",
            "University of Zurich",
            "University Hospital of Zurich",
            "Institute for Biomedical Engineering - University and ETH Zurich"
        ],
        "content": "Having a comprehensive understanding of the physics of blood flow is of great interest to characterize pathological flows, improve \\textit{in vivo }measuring techniques and implement new therapeutic procedures in clinical pratice. The main aim is to establish reference numerical data sets to validate different methods for computing energy dissipation from flow sensitized 4D Magnetic Resonance Imaging. The present study focuses on DNS of turbulent blood flow in a rigid model of thoracic aorta using OpenFOAM.\\\\In this paper, we present the extension and validation against numerical data in a simpler geometry (Fig.1a) of OpenFOAM capabilities to perform DNS of blood flow in the thoracic aorta (Fig.1b). To achieve the most accurate simulated flow fields, a comparison is made using different temporal discretization schemes and two pressure-velocity coupling algorithms. Attention is also paid to mesh-related non-orthogonality and skewness errors and to the definition of precise near wall cells.",
        "image": "images/025.png",
        "image_squared": "images/025-squared.png",
        "image_caption": "DNS in (a) a straight stenosed aorta and the numerical validation data (Varghese S. S. et al. (2007), \\textit{J. Fluid Mech.}, 582, 253-280) (b) an anatomically accurate aorta and the 3D-PTV comparison data (Gallo D. et al. (2014), \\textit{J. Biomech.}, 47, 3149-3155)"
    },
    {
        "abstract_number": 27,
        "abstract_submitted": "2016-01-29 10:31:16",
        "abstract_status": "accepted:oral",
        "registration_number": 10,
        "registration_submitted": "2016-03-30 11:51:07",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Angelika",
        "last_name": "Klein",
        "email": "aklein@iup.uni-heidelberg.de",
        "degree": "M.Sc.",
        "org": "University Heidelberg",
        "dept": "",
        "country": "Germany",
        "country_code": "DE",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Imaging techniques to investigate mechanisms of air-water gas transfer at wind-driven water surface",
        "keywords": [
            "Experimental techniques"
        ],
        "authors": [
            {
                "name": "A. Klein",
                "affil": "HGS MathComp, Institute of Environmental Physics University Heidelberg, Heidelberg Collaboratory for Image Processing",
                "affil_id": 0
            },
            {
                "name": "C. Kräuter",
                "affil": "Institute of Environmental Physics University Heidelberg, Heidelberg Collaboratory for Image Processing",
                "affil_id": 1
            },
            {
                "name": "B. Jähne",
                "affil": "Institute of Environmental Physics University Heidelberg, Heidelberg Collaboratory for Image Processing",
                "affil_id": 1
            }
        ],
        "affils": [
            "HGS MathComp, Institute of Environmental Physics University Heidelberg, Heidelberg Collaboratory for Image Processing",
            "Institute of Environmental Physics University Heidelberg, Heidelberg Collaboratory for Image Processing"
        ],
        "content": "The Heidelberg Aeolotron is a large annular wind-wave facility to investigate the mechanisms of air-water gas transfer. Several measurement techniques can be used simultaneously to observe the dynamics of the mass transfer across the aqueous viscous boundary layer. A high speed camera captures the 2-D extend of the slope of the water surface with more than 1500 frames per second and a spatial resolution of 0.22 mm (Kiefhaber et al., 2014). Additionally, a Boundary Layer Imaging (BLI) method by Kr\\\"{a}uter et al. (2014) images the thickness of a controllable fraction of the mass boundary layer with a horizontal resolution of 0.156 mm. Thus, the influence of Langmuir circulations and micro-scale breaking on the air-water gas transfer can be investigated. Besides these two imaging techniques, a thermographic setup determines the heat transfer at the water surface. We present first results in the wind-driven small-scale mechanisms and their influence on the air-water gas exchang.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 28,
        "abstract_submitted": "2016-01-29 11:02:15",
        "abstract_status": "accepted:oral",
        "registration_number": 63,
        "registration_submitted": "2016-04-30 17:37:57",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Lilly",
        "last_name": "Verso",
        "email": "lillyverso@gmail.com",
        "degree": "M.Sc.",
        "org": "Tel Aviv University",
        "dept": "School of Mechanical Engineering, Tel Aviv University, Tel Aviv, Israel",
        "country": "Israel",
        "country_code": "IL",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Background Oriented Schlieren in a Density Stratified Fluid",
        "keywords": [
            "Experimental techniques",
            "Geophysical flows"
        ],
        "authors": [
            {
                "name": "Lilly Verso",
                "affil": "School of Mechanical Engineering, Faculty of Engineering, Tel Aviv University",
                "affil_id": 0
            },
            {
                "name": "Alex Liberzon",
                "affil": "School of Mechanical Engineering, Faculty of Engineering, Tel Aviv University",
                "affil_id": 0
            }
        ],
        "affils": [
            "School of Mechanical Engineering, Faculty of Engineering, Tel Aviv University"
        ],
        "content": "Non-intrusive quantitative fluid density measurements methods are essential in the stratified flow experiments. Inthis study, an important extension of the background oriented Schlieren (BOS) is proposed. The extension enables an accurate reconstruction of the density field in stratified liquid experiments. Typically the experiments areperformed by the light source, background pattern and the camera positioned on the opposite sides of a transparent vessel. The multi-media imaging through air-glass-water-glass-air leads to an additional aberration that destroys the reconstruction. Atwo-step calibration and image remapping transform are the key components that correct the images through the stratified media and provide a non-intrusive full-field density measurements of transparent liquids.The developed procedureis extensively tested in an air/water double layer system and in a 4-layers salty-water configuration composed bysolutions of increased density.",
        "image": "images/028.png",
        "image_squared": "images/028-squared.png",
        "image_caption": "(Left) Reconstruction of the density field of a four layers saline solution. (Right) density profile (z) of the previous stratified setup. Solide line - correct solution using the new method,dashed line - the Poisson solution without correction."
    },
    {
        "abstract_number": 29,
        "abstract_submitted": "2016-01-29 11:49:55",
        "abstract_status": "accepted:poster",
        "registration_number": 78,
        "registration_submitted": "2016-05-11 12:43:47",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Valentin",
        "last_name": "Resseguier",
        "email": "valentin.resseguier@inria.fr",
        "degree": "M.Sc.",
        "org": "Inria - Ifremer",
        "dept": "Fluminance - LOPS",
        "country": "France",
        "country_code": "FR",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Stochastic subgrid tensor for geophysical flow modeling",
        "keywords": [
            "Geophysical flows",
            "Ensemble forecasting",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "V. Resseguier",
                "affil": "Inria - Ifremer",
                "affil_id": 0
            },
            {
                "name": "E. Mémin",
                "affil": "Inria",
                "affil_id": 1
            },
            {
                "name": "B. Chapron",
                "affil": "Ifremer",
                "affil_id": 2
            }
        ],
        "affils": [
            "Inria - Ifremer",
            "Inria",
            "Ifremer"
        ],
        "content": "Stochastic models can be developed to perform ensemble forecasts of geophysical fluid dynamical systems and to betterhandle subgrid parametrizations. We propose to add to the smooth resolved velocity, an unresolved component, Gaussian, uncorrelated in time and inhomogeneous in space. This model changes the usual form of the material derivative of a tracer. This new form involves directly a multiplicative noise, an anisotropic and inhomogeneous diffusion, and a drift correction. As such, the rigorous derivation of this conservative model relates naturally the random forcing to the subgrid parametrization. Stochastic versions of classical models can then be derived from conservation of mass, energy and momentum. Numerical simulations of our stochastic version of Surface Quasi-Geostrophic model improves both the accuracy of a single simulation, as illustrated in Figure 1, and the ensemblepredective skills.",
        "image": "images/029.jpg",
        "image_squared": "images/029-squared.jpg",
        "image_caption": "Buoyancy (\\(m.s^{-2}\\)) simulated with our stochastic SQG model at low resolution (\\(64\\times 64\\)) (left), the usual SQG model at low resolution (\\(64\\times 64\\)) (right) and the usual SQG model at high resolution (\\(256\\times 256\\))(bottom)."
    },
    {
        "abstract_number": 30,
        "abstract_submitted": "2016-01-29 11:59:56",
        "abstract_status": "accepted:poster",
        "registration_number": 48,
        "registration_submitted": "2016-04-26 09:15:18",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Monika",
        "last_name": "Szlapa",
        "email": "monika.szlapa@iigw.pk.edu.pl",
        "degree": "M.Sc.",
        "org": "Cracow University of Technology",
        "dept": "Institute of Water Engineering and Water Management",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "An impact of the thermocline on water dynamics in reservoirs - simulation comparison.",
        "keywords": [
            "Computational methods",
            "Geophysical flows",
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "Monika Szlapa",
                "affil": "Institute of Water Engineering and Water Management Cracow University of Technology,",
                "affil_id": 0
            },
            {
                "name": "Paweł S. Hachaj",
                "affil": "Institute of Water Engineering and Water Management Cracow University of Technology,",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute of Water Engineering and Water Management Cracow University of Technology,"
        ],
        "content": "While modeling water dynamics in dam reservoirs it is usually assumed that the flow involves the whole water body. It is usually true for shallow reservoirs (up to several meters of depth) but may be false for deeper ones. The possible presence of a thermocline creates an inactive bottom layer that does not move causing all the discharge to be carried by the low depth strata. This study compares the results of dynamics simulations performed for the whole reservoir to the ones carried out for\\\\the upper strata only. The validity of the whole water body flow approximation is then discussed.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 32,
        "abstract_submitted": "2016-01-29 12:39:29",
        "abstract_status": "accepted:poster",
        "registration_number": 20,
        "registration_submitted": "2016-04-06 08:51:22",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Michał",
        "last_name": "Kulak",
        "email": "michal.kulak@p.lodz.pl",
        "degree": "M.Sc.",
        "org": "Lodz University of Technology",
        "dept": "Faculty of Mechanical Engineering, Institute of Turbomachinery",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Wheel aerodynamics influence on passenger car drag",
        "keywords": [
            "Aerodynamics",
            "Computational methods",
            "Experimental techniques"
        ],
        "authors": [
            {
                "name": "Michał Kulak",
                "affil": "Lodz University of Technology, Faculty of Mechanical Engineering, Institute of Turbomachinery",
                "affil_id": 0
            },
            {
                "name": "Paweł Leśniewicz",
                "affil": "Lodz University of Technology, Faculty of Mechanical Engineering, Institute of Turbomachinery",
                "affil_id": 0
            }
        ],
        "affils": [
            "Lodz University of Technology, Faculty of Mechanical Engineering, Institute of Turbomachinery"
        ],
        "content": "Vehicle drag reduction can influence not only fuel consumption decrease, but also other features like increasing travelling velocity, reducing C02 emissions or expanding the maximum range (especially important in electric vehicles), not to mention user comfort and safety. This paper provides the part of research on aerodynamic influence of the rotating wheels on the car body. In order to investigate the contribution of wheels to overall vehicle drag, a simplified model of a car was tested in a wind tunnel PIV-based experiment in Magny-Cours (France) by PSA Peugeot Citroen. In parallel, CFD simulations campaign (using ANSYS CFX software) was conducted to enable formulation of wider conclusions on tyre shape influence on vehicle drag. The main aim was to establish a method of wheel-ground contact and relative motion modelling, allowing to estimate the aerodynamic role of wheels in vehicle air resistance via numerical simulations.",
        "image": "images/032.png",
        "image_squared": "images/032-squared.png",
        "image_caption": "Exemplary pressure distributions on wheel - front view; upper left - slick tyre, moving wall approach; bottom left - slick tyre, MRF; upper right - grooved tyre, moving wall approach; lower right - grooved tyre, MRF."
    },
    {
        "abstract_number": 35,
        "abstract_submitted": "2016-01-29 19:00:55",
        "abstract_status": "accepted:oral",
        "registration_number": 33,
        "registration_submitted": "2016-04-15 08:25:14",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Sergey",
        "last_name": "Belan",
        "email": "sergb27@yandex.ru",
        "degree": "M.Sc.",
        "org": "Landau Institute for Theoretical Physics",
        "dept": "",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Localization-delocalization transition for inertial particles in wall-bounded random flow",
        "keywords": [
            "Wall-bounded flows",
            "Multiphase flows"
        ],
        "authors": [
            {
                "name": "Sergey Belan",
                "affil": "Landau Institute for Theoretical Physics, Chernogolovka, Russia",
                "affil_id": 0
            },
            {
                "name": "Alexander Chernykh",
                "affil": "Institute of Automation and Electrometry, Novosibirsk, Russia",
                "affil_id": 1
            },
            {
                "name": "Gregory Falkovich",
                "affil": "Weizmann Institute of Science, Rehovot, Israel",
                "affil_id": 2
            }
        ],
        "affils": [
            "Landau Institute for Theoretical Physics, Chernogolovka, Russia",
            "Institute of Automation and Electrometry, Novosibirsk, Russia",
            "Weizmann Institute of Science, Rehovot, Israel"
        ],
        "content": "Turbophoresis is the tendency of particles to migrate in the direction of minima of turbulence intensity. It was recently suggested that the sign of turbophoresis can be actually opposite, so that particles agitated by turbulent fluid fluctuations go away from minima of fluctuations intensity if they are inertial enough. That means localization-delocalization transition upon the change of inertia: particles with small inertia go to a minimum of turbulence, while sufficiently inertial particles escape to infinity. We consider the motion of inertial particles near a wall in the case of inelastic particle-wall collisions. The phase diagram for the transition in the inertia-elasticity plane is found. If the restitution coefficient of particle velocity is smaller than some critical value, then the inelastic collapse occurs: the particles are localized near the wall for any inertia. The theoretical predictions are in a good agreement with the results of direct numerical simulations.",
        "image": "images/035.png",
        "image_squared": "images/035-squared.png",
        "image_caption": "The phase diagram of the localization-delocalization transition in inertia-elasticity plane: theory(line) and numerical simulations ()."
    },
    {
        "abstract_number": 36,
        "abstract_submitted": "2016-01-30 06:50:33",
        "abstract_status": "accepted:poster",
        "registration_number": 2,
        "registration_submitted": "2016-03-23 11:56:03",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Nicoleta Octavia",
        "last_name": "Tanase",
        "email": "octavia.tanase@upb.ro",
        "degree": "Ph.D.",
        "org": "University “Politehnica” of Bucharest",
        "dept": "Hydraulics Department, REOROM Laboratory",
        "country": "Romania",
        "country_code": "RO",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Free surface flow in vicinity of immersed smooth and grooved cylinders–experiments and simulations",
        "keywords": [
            "Free surface flow",
            "Applied fluid dynamics",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Nicoleta Octavia Tanase",
                "affil": "University “Politehnica” of Bucharest, REOROM Laboratory",
                "affil_id": 0
            },
            {
                "name": "Diana Broboana",
                "affil": "University “Politehnica” of Bucharest, REOROM Laboratory",
                "affil_id": 0
            },
            {
                "name": "Corneliu Balan",
                "affil": "University “Politehnica” of Bucharest, REOROM Laboratory",
                "affil_id": 0
            }
        ],
        "affils": [
            "University “Politehnica” of Bucharest, REOROM Laboratory"
        ],
        "content": "The paper is concerned with the investigations of 2D flows in the vicinity of the separation points using a CFD analysis based on the experiments performed for smooth and grooved immersed cylinders. The main goal of the paper is to evaluate the influence of the grooved surfaces of the immersed cylinder on the local hydrodynamics and wake configuration.\n\nThe experiments are performed in a free surface transparent water channel. The investigated motion is weakly turbulent in sub-critical regime characterized by the Reynolds number \\textit{Re }= 7500 and Froude number \\textit{Fr} = 0.214. The numerical simulations are performed with the FLUENT code using the turbulent model coupled with VOF for the computation of the free surface.\n\nThe results indicates that presence of a grooved geometry with small aspect ratio on the surface of the immersed cylinders change the flow spectrum downstream the bodies, especially in the structure of the separated shear-layers which delimit the wake.",
        "image": "images/036.jpg",
        "image_squared": "images/036-squared.jpg",
        "image_caption": "Comparison between smooth cylinder and grooved cylinder - experimental (a) and computed (b) flow spectrum. Details with the experimental and computed flow in the vicinity of the separation point (D1) for the smooth and grooved cylinders, (c)."
    },
    {
        "abstract_number": 37,
        "abstract_submitted": "2016-01-30 13:21:07",
        "abstract_status": "accepted:oral",
        "registration_number": 54,
        "registration_submitted": "2016-04-28 14:39:06",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Emmanuel Lance Christopher VI",
        "last_name": "Plan",
        "email": "elcplan@unice.fr",
        "degree": "M.Sc.",
        "org": "University Nice Sophia Antipolis",
        "dept": "Laboratoire Jean Alexandre Dieudonné",
        "country": "France",
        "country_code": "FR",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Bending dynamics of semi-flexible particles in isotropic turbulence",
        "keywords": [
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Aamir Ali",
                "affil": "Department of Mathematics, COMSATS Intitute of Information Technology, Attock, Pakistan",
                "affil_id": 0
            },
            {
                "name": "Emmanuel Lance Christopher VI M. Plan",
                "affil": "Laboratoire Jean Alexandre Dieudonn é, Universit é Nice Sophia Antipolis, CNRS, UMR 7351, 06100 Nice, France",
                "affil_id": 1
            },
            {
                "name": "Samriddhi Sankar Ray",
                "affil": "International Center for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore 560012, India",
                "affil_id": 2
            },
            {
                "name": "Dario Vincenzi",
                "affil": "Laboratoire Jean Alexandre Dieudonn é, Universit é Nice Sophia Antipolis, CNRS, UMR 7351, 06100 Nice, France",
                "affil_id": 1
            }
        ],
        "affils": [
            "Department of Mathematics, COMSATS Intitute of Information Technology, Attock, Pakistan",
            "Laboratoire Jean Alexandre Dieudonn é, Universit é Nice Sophia Antipolis, CNRS, UMR 7351, 06100 Nice, France",
            "International Center for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore 560012, India"
        ],
        "content": "We study the Lagrangian dynamics of semi-flexible particles in homogeneous and isotropic turbulent flows by means of analytically solvable stochastic models and direct numerical simulations. The statistics of the bending angle is qualitatively different in laminar and turbulent flows and exhibits a strong dependence on the topology of the velocity field. In particular, in two-dimensional turbulence, particles are either found in a fully extended or in a fully folded configuration; in three dimensions, the predominant configuration is the fully extended one",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 38,
        "abstract_submitted": "2016-01-30 15:36:49",
        "abstract_status": "accepted:poster",
        "registration_number": 90,
        "registration_submitted": "2016-05-17 09:49:22",
        "registration_status": "expired",
        "gender_title": "Mr.",
        "first_name": "Michele",
        "last_name": "Scalseggi",
        "email": "michele.scalseggi@gmail.com",
        "degree": "M.Sc.",
        "org": "University of Turin",
        "dept": "Department of Medical Sciences",
        "country": "Italy",
        "country_code": "IT",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Impact of thoracic aneurysm on hemodynamics of the arterial tree",
        "keywords": [
            "Biofluids"
        ],
        "authors": [
            {
                "name": "Michele Scalseggi",
                "affil": "Department of Medical Sciences, Medical Physiopathology, University of Turin, Turin, Italy",
                "affil_id": 0
            }
        ],
        "affils": [
            "Department of Medical Sciences, Medical Physiopathology, University of Turin, Turin, Italy"
        ],
        "content": "The ascending thoracic aortic aneurysm (aTAA) is alife threatening disease whose incidence among population is about 1 per 10000 person-years. The exact mechanisms through which this pathology originates and its effects on the hemodynamics of the arterial tree are not fully understood. In order to further shed light on the hemodynamics changes related to the aTAA, a multi-scale mathematical model was used {[}Guala et al., Ann. Biomed. Eng. 43(1):222-237, 2015{]} . This model couples the heart via a 0-D model of the aortic valve; in turn, such a valve is modeled by an ODE describing the force balance on its leaflets. Bigger arteries are considered 1-D, their bifurcations are solved by imposing flow and total pressure and their distal part is modeled by a Windkessel model.The aneurysm was then modeled by both modifying the geometrical properties of ascending aorta and varying their arterial stiffness. The resulting waveforms were analyzed using the backward-forward wave decomposition tool.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 40,
        "abstract_submitted": "2016-01-31 13:29:54",
        "abstract_status": "accepted:oral",
        "registration_number": 36,
        "registration_submitted": "2016-04-17 16:27:56",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Grzegorz",
        "last_name": "Gruszczynski",
        "email": "ggruszczynski@gmail.com",
        "degree": "B.Sc.",
        "org": "Warsaw University of Technology",
        "dept": "The Faculty of Power and Aeronautical Engineering",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Adjoint Lattice Bolztmann for Optimal Control",
        "keywords": [
            "Computational methods",
            "Convection"
        ],
        "authors": [
            {
                "name": "Grzegorz Gruszczyński",
                "affil": "Warsaw University of Technology, The Faculty of Power and Aeronautical Engineering",
                "affil_id": 0
            },
            {
                "name": "Łukasz Łaniewki-Wołłk",
                "affil": "Warsaw University of Technology, The Faculty of Power and Aeronautical Engineering",
                "affil_id": 0
            },
            {
                "name": "Jacek Szumbarski",
                "affil": "Warsaw University of Technology, The Faculty of Power and Aeronautical Engineering",
                "affil_id": 0
            }
        ],
        "affils": [
            "Warsaw University of Technology, The Faculty of Power and Aeronautical Engineering"
        ],
        "content": "In many industrial processes mixing of fluids play a crucial role. For instance, it is often desired to enforce a uniform distribution of the temperature or a chemical reactant in the domain using minimal amount of work during a prescribed time.\n\nTo solve the optimal control problem the Lattice Bolztmann method is used. The method is is characterized by an inherited time dependence, easy implementation and almost ideal scalability on parallel supercomputers.\n\nThe author presents a discrete adjoint formulation to calculate sensitivity of the LBM solution. The derivatives are calculated from the code of the standard LBM solver using the AutomaticDifferentiation. The adjoint problem has similar properties to the primal one. These includes locality and explicit time-stepping, thus it can be straightforwardly incorporated to the original solver. This approach allows to solve the optimal control problem keeping the key scheme of LBM solver intact.",
        "image": "images/040.png",
        "image_squared": "images/040-squared.png",
        "image_caption": "The figure illustrates the process of mixing of a passive scalar droplet in a lid driven cavity flow."
    },
    {
        "abstract_number": 43,
        "abstract_submitted": "2016-01-31 19:13:13",
        "abstract_status": "accepted:poster",
        "registration_number": 45,
        "registration_submitted": "2016-04-22 07:32:49",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Luka",
        "last_name": "Poniatowski",
        "email": "luka.poniatowski625@ens.tsu.edu.ge",
        "degree": "B.Sc.",
        "org": "Ivane Javakhishvili Tbilisi State University",
        "dept": "Faculty of Exact and Natural Sciences, Department of Physics",
        "country": "Georgia",
        "country_code": "GE",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Linear stability of differentially rotating granular Keplerian flows",
        "keywords": [
            "Aerodynamics",
            "Geophysical flows",
            "Granular flows"
        ],
        "authors": [
            {
                "name": "Luka Poniatowski",
                "affil": "Abastumani Astrophysical Observatory ; Ivane Javakhishvili Tbilisi State University",
                "affil_id": 0
            },
            {
                "name": "Alexander Tevzadze",
                "affil": "Abastumani Astrophysical Observatory ; Ivane Javakhishvili Tbilisi State University",
                "affil_id": 0
            }
        ],
        "affils": [
            "Abastumani Astrophysical Observatory ; Ivane Javakhishvili Tbilisi State University"
        ],
        "content": "We study the linear dynamics of circumstellar disks taking into account rheological properties of the flow that contains gas, dust and debris orbiting central gravitating object. Interaction of solid particles is studied within the granular flow model, when local constitutive equation can be used. In this model we derive 2D equilibrium flow with Keplerian velocity profile and radially stratified pressure, density and kinematic viscosity. \n\nWe use local shearing sheet model and neglect flow curvature to study the linear dynamics of vortex and spiral-density waves under the influence of granular rheology. We derive linear spectrum of the problem and show dissipative properties of individual wave modes. Using isentropic flow model we reduce to barotropic configuration where potential vorticity is conserved apart from viscous dissipation. In this limit we show potential vorticity generation mechanism due to the interplay of differential rotation and rheological properties of the flow. ",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 44,
        "abstract_submitted": "2016-01-31 19:19:44",
        "abstract_status": "accepted:oral",
        "registration_number": 19,
        "registration_submitted": "2016-04-05 10:01:25",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "John",
        "last_name": "Walker",
        "email": "j.walker.5@research.gla.ac.uk",
        "degree": "M.Sc.",
        "org": "University of Glasgow",
        "dept": "Aerospace Sciences Research Division",
        "country": "United Kingdom",
        "country_code": "GB",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "The effect of marine biofouling on tidal turbine blade section performance",
        "keywords": [
            "Applied fluid dynamics",
            "Aerodynamics"
        ],
        "authors": [
            {
                "name": "John S Walker",
                "affil": "University of Glasgow",
                "affil_id": 0
            },
            {
                "name": "Richard B Green",
                "affil": "University of Glasgow",
                "affil_id": 0
            },
            {
                "name": "Eric A Gillies",
                "affil": "University of Glasgow",
                "affil_id": 0
            }
        ],
        "affils": [
            "University of Glasgow"
        ],
        "content": "Horizontal axis tidal stream turbines operate in a challenging marine environment, characterised by highly unsteady, turbulent flow, significant velocity shear and wave loading. The resulting dynamic blade loads are expected to be a limiting factor on the turbine performance and operational limits, but unsteady performance data for thicker aerofoil sections is not readily available and the blade design process only considers steady flows. The potential for blade surface biofouling complicates this issue further, particularly due to likely performance degradation during the device lifecycle.\n\nStatic and oscillatory wind tunnel tests have been conducted, including both clean and roughened blade sections to quantify the change in dynamic performance as a result of lifecycle fouling. Findings from this investigation will be presented highlighting the underlying fluid mechanisms and behaviour, dynamic flow modelling approaches, and their impact on tidal turbine design and performance.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 45,
        "abstract_submitted": "2016-01-31 19:31:56",
        "abstract_status": "accepted:oral",
        "registration_number": 49,
        "registration_submitted": "2016-04-27 16:13:09",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Josef",
        "last_name": "Schröttle",
        "email": "josef.schroettle@dlr.de",
        "degree": "M.Sc.",
        "org": "German Aerospace Center, DLR",
        "dept": "Institute for Atmospheric Physics",
        "country": "Germany",
        "country_code": "DE",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Large-eddy simulations of a wind turbine wake above a forest",
        "keywords": [
            "Geophysical flows",
            "Computational methods",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Josef Schröttle",
                "affil": "Institute for Atmospheric Physics, German Aerospace Center (DLR)",
                "affil_id": 0
            },
            {
                "name": "Zbigniew Piotrowski",
                "affil": "Institute of Meteorology and Water Management (IMGW), Warsaw",
                "affil_id": 1
            }
        ],
        "affils": [
            "Institute for Atmospheric Physics, German Aerospace Center (DLR)",
            "Institute of Meteorology and Water Management (IMGW), Warsaw"
        ],
        "content": "Since the pioneering large-eddy simulations of Shaw and Schumann (1992), the forest stands have been treated as a porous body of horizontally uniform (leaf) area density with constant drag coefficient. This approach is sometimes called field-scale approach. Current finer scale applications and field campaigns consider the heterogeneity of the canopies at the plant-scale (Schr\\\"{o}ttle and D\\\"{o}rnbrack 2013). We present results from plant-scale simulations of flow through resolved tree structures originating from laser scans. Simulating the wake of one wind turbine, e.g., above a forest requires a new computational approach. For this purpose, EULAG (Prusa et al. 2008) is modified to accommodate two independent hydrodynamic solvers. The two solvers are integrated simultaneously. The turbulence structure above a forest is simulated in the first solver at the field scale and acts as inflow for the wind turbine wake flow.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 48,
        "abstract_submitted": "2016-01-31 21:16:58",
        "abstract_status": "accepted:poster",
        "registration_number": 60,
        "registration_submitted": "2016-04-29 11:24:34",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Emily",
        "last_name": "Kruger",
        "email": "esk28@cam.ac.uk",
        "degree": "M.Sc.",
        "org": "Cambridge University",
        "dept": "Department of Applied Mathematics and Theoretical Physics",
        "country": "United Kingdom",
        "country_code": "GB",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Dynamics of downdrafts",
        "keywords": [
            "Experimental techniques",
            "Applied fluid dynamics",
            "Convection"
        ],
        "authors": [
            {
                "name": "Emily Kruger",
                "affil": "Cambridge University",
                "affil_id": 0
            },
            {
                "name": "Henry Burridge",
                "affil": "Cambridge University",
                "affil_id": 0
            },
            {
                "name": "Jamie Partridge",
                "affil": "Cambridge University",
                "affil_id": 0
            },
            {
                "name": "Paul Linden",
                "affil": "Cambridge University",
                "affil_id": 0
            }
        ],
        "affils": [
            "Cambridge University"
        ],
        "content": "Downward moving cold air within thunderstorms, known as downdrafts, can be used to determine the severity of a storm. Therefore an understanding of them is useful for weather forecasting. Typically in weather forecasting these downdrafts are modelled using the theory of a plume from Morton, Taylor and Turner (1956), which inherently assumes that the plume is long and thin. Downdrafts, are generally wider than they are high, and hence deviate from the Morton, Taylor and Turner theory. We perform experiments using finite releases of dense fluid from large area sources, releasing the fluid at a range of heights above the ground, which encompasses the typical geometries of downdrafts. By tracking the edges of the release and using PIV measurements we compare the dynamics of our experimental downdrafts to that of a classic Morton, Taylor and Turner plume. In so doing we are able to better inform the forecasting of weather arising from such downdrafts.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 49,
        "abstract_submitted": "2016-01-31 22:48:31",
        "abstract_status": "accepted:poster",
        "registration_number": 80,
        "registration_submitted": "2016-05-12 06:20:06",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Dmytro",
        "last_name": "Sashko",
        "email": "dmshko@gmail.com",
        "degree": "B.Sc.",
        "org": "Warsaw University of Technology",
        "dept": "Faculty of Power and Aerospace engineering",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Simulation of turbulent flows using Lattice Boltzmann Method",
        "keywords": [
            "Turbulence",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Dmytro Sashko",
                "affil": "Faculty of Power and Aerospace engineering, Warsaw University of Technology",
                "affil_id": 0
            },
            {
                "name": "Łukasz Łaniewski-Wołłk",
                "affil": "Faculty of Power and Aerospace engineering,  Warsaw University of Technology",
                "affil_id": 1
            }
        ],
        "affils": [
            "Faculty of Power and Aerospace engineering, Warsaw University of Technology",
            "Faculty of Power and Aerospace engineering,  Warsaw University of Technology"
        ],
        "content": "Turbulence is a complex unresolved problem in the classical physics. Simulation of turbulent flows usually assume application of such turbulence modelling as RANS, LES or using DNS in the conventional Computational Fluid Dynamic methods. However in the following work we propose using recent branch of Lattice-Boltzmann method. Due to the nature of Lattice-Botlzman method, that solves microscopic Boltzmann equation instead of directly solving Navie-Stokes equation and proper choice of its collision operator, it is possible to obtain high computation speed and stability in simulation of high Reynolds number flows without explicit turbulence modelling.",
        "image": "images/049.png",
        "image_squared": "images/049-squared.png",
        "image_caption": "Turbulent flow in a cube with periodic boundary, initialized by two oppositely directed flows and random perturbation"
    },
    {
        "abstract_number": 50,
        "abstract_submitted": "2016-01-31 23:00:46",
        "abstract_status": "accepted:poster2",
        "registration_number": 92,
        "registration_submitted": "2016-05-17 10:23:04",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Abdelkrim",
        "last_name": "Merah",
        "email": "abdelkrimerah@univ-boumerdes.dz",
        "degree": "M.Sc.",
        "org": "University of sciences and technology of Houari Boumedienne",
        "dept": "Faculty of physics",
        "country": "Algeria",
        "country_code": "DZ",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "CFD study of flow in small geometries for a conical Couette-Taylor problem",
        "keywords": [
            "Computational methods",
            "Geophysical flows",
            "Hysrodynamic instability"
        ],
        "authors": [
            {
                "name": "Abdelkrim Merah",
                "affil": "University of Sciences and Technology of Houari Boumedienne",
                "affil_id": 0
            },
            {
                "name": "Faiza Mokhtari",
                "affil": "University of Sciences and Technology of Houari Boumedienne",
                "affil_id": 0
            },
            {
                "name": "Ahcene Bouabdallah",
                "affil": "University of Sciences and Technology of Houari Boumedienne",
                "affil_id": 0
            }
        ],
        "affils": [
            "University of Sciences and Technology of Houari Boumedienne"
        ],
        "content": "The flow of Couette-Taylor is that which develops in the annular space between two coaxial relatively rotating cylinders. We consider an incompressible viscous fluid which is contained in the narrow gap between two concentric short conical cylinders, where the inner conical cylinder rotates with constant angular velocity. The numerical and analytical solutions for the Couette flow for short cylinders was compared and the hydrodynamic stability in conical Couette-Taylor is simulated. The flow requires to study the angular momentum also the axial, radial velocity components. Pattern formation was studied for different Taylor numbers.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 52,
        "abstract_submitted": "2016-02-01 09:08:59",
        "abstract_status": "accepted:poster",
        "registration_number": 3,
        "registration_submitted": "2016-03-23 13:55:59",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Stefan",
        "last_name": "Simionescu",
        "email": "stefan_simionescu@yahoo.com",
        "degree": "M.Sc.",
        "org": "Politehnica University of Bucharest",
        "dept": "Hydraulics Department, Power Engineering Faculty",
        "country": "Romania",
        "country_code": "RO",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Influence of structured surfaces on impinging jets aerodynamics",
        "keywords": [
            "Aerodynamics",
            "Computational methods",
            "Impinging jets"
        ],
        "authors": [
            {
                "name": "Stefan-Mugur Simionescu",
                "affil": "Politehnica University of Bucharest, REOROM Laboratory",
                "affil_id": 0
            },
            {
                "name": "Corneliu Balan",
                "affil": "Politehnica University of Bucharest, REOROM Laboratory",
                "affil_id": 0
            }
        ],
        "affils": [
            "Politehnica University of Bucharest, REOROM Laboratory"
        ],
        "content": "Three-dimensional turbulent jet flows are widely spread in nature and industry. Many practical applications and developing devices assume impinging jets to be spreading in narrow gaps with controlled wall roughness or with special designed micro-pattern surfaces.\n\nThis work presents a CFD investigation using the Fluent code of the evolution of a circular air jet impinging on a solid surface with one-direction square grooves (5 mm in width and depth). The Reynolds averaged Navier-Stokes simulations are performed in a 3D domain with symmetry boundary conditions. The jet Reynolds numbers used for the simulations are in the interval from 100 to 10000.The detailed distribution of velocity and pressure at the impingement of the air jet on the impacted plate are inferred. Finally, a comparison between the numerical results, a set of experiments performed in the laboratory and some relevant cases from literature is made and conclusions are drawn.",
        "image": "images/052.png",
        "image_squared": "images/052-squared.png",
        "image_caption": "a. Schematic view of the case studied: the jet standoff distance \\textit{z} is set to 2 or 5 times the jet diameter \\textit{d} =15 mm;\n\nb. Computational domain and boundary conditions;\n\nc. Computed flow spectrum;\n\nd. Experimental flow spectrum."
    },
    {
        "abstract_number": 54,
        "abstract_submitted": "2016-02-01 10:42:14",
        "abstract_status": "accepted:oral",
        "registration_number": 59,
        "registration_submitted": "2016-04-29 11:24:34",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Niall",
        "last_name": "O'Keeffe",
        "email": "no265@cam.ac.uk",
        "degree": "M.Sc.",
        "org": "University of Cambridge",
        "dept": "Department of Applied Mathematics and Theoretical Physics (DAMTP)",
        "country": "United Kingdom",
        "country_code": "GB",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Fluid-driven fractures in brittle hydrogels",
        "keywords": [
            "Geophysical flows",
            "Experimental techniques",
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "Niall O'Keeffe",
                "affil": "University of Cambridge",
                "affil_id": 0
            },
            {
                "name": "Prof. Paul Linden",
                "affil": "University of Cambridge",
                "affil_id": 0
            }
        ],
        "affils": [
            "University of Cambridge"
        ],
        "content": "We study the physical mechanisms of fluid-driven fracture in low permeability reservoirs. This is done through the use of laboratory scale experiments on brittle heavily cross-linked hydrogels. These hydrogels have been shown to fracture similarly to `standard' brittle materials, which have been widely used to model geological mechanics. Crucially, the hydrogels are transparent, and permit fracturing at lower pressures and slower timescales. In particular, we will discuss fracturing regimes in which either viscous energy dissipation or material toughness dominates the rate of crack growth. Scaling laws for these regimes will be presented and matched against our experimental results.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 56,
        "abstract_submitted": "2016-02-01 11:35:40",
        "abstract_status": "accepted:oral",
        "registration_number": 7,
        "registration_submitted": "2016-03-24 08:34:54",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Ivan",
        "last_name": "Litvinov",
        "email": "litv88@yandex.ru",
        "degree": "M.Sc.",
        "org": "Institute of Thermophysics",
        "dept": "",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Study of far wake behind a combination  of two wind-turbine models and thin disks",
        "keywords": [
            "Applied fluid dynamics",
            "Experimental techniques"
        ],
        "authors": [
            {
                "name": "Ivan Litvinov",
                "affil": "Institute of Thermophysics, SB RAS, Novosibirsk 630090, Russia",
                "affil_id": 0
            },
            {
                "name": "Elizaveta Gesheva",
                "affil": "Institute of Thermophysics, SB RAS, Novosibirsk 630090, Russia",
                "affil_id": 0
            },
            {
                "name": "Igor Naumov",
                "affil": "Institute of Thermophysics, SB RAS, Novosibirsk 630090, Russia",
                "affil_id": 0
            },
            {
                "name": "Valery Okulov",
                "affil": "Institute of Thermophysics, SB RAS, Novosibirsk 630090, Russia; Department of Wind Energy, Technical University of Denmark, 2800 Lyngby, Denmark",
                "affil_id": 1
            },
            {
                "name": "Robert Mikkelsen",
                "affil": "Institute of Thermophysics, SB RAS, Novosibirsk 630090, Russia; Department of Wind Energy, Technical University of Denmark, 2800 Lyngby, Denmark",
                "affil_id": 1
            }
        ],
        "affils": [
            "Institute of Thermophysics, SB RAS, Novosibirsk 630090, Russia",
            "Institute of Thermophysics, SB RAS, Novosibirsk 630090, Russia; Department of Wind Energy, Technical University of Denmark, 2800 Lyngby, Denmark"
        ],
        "content": "In spite of the extensive studies, the prediction of wake evolution and decay are still open questions. Stereo-PIV experiments were carried out to study the development of mean velocity profiles of the far wake behind a combination of two wind turbine models and disks in a DTU water flume. The models are placed in a middle of the flume with a uniform flow and a very low turbulence level separately for two cases. The rotor is three-bladed and designed using Glauerts optimum theory at a tip speed ratio \\textit{$\\lambda$} =5. The wake development has been studied in the wide range of \\textit{$\\lambda$}, \\textit{L} (a length between bodies) and at different cross-sections from 10\\textit{D} to 40\\textit{D} downstream from the first body. In order to fit velocity profiles regression techniques were used therefore it was possible to obtain accurate velocity deficits of the wake attenuation. The data are compared with analytical model (Johansson et al, 2003) for wind turbine and disk wakes.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 57,
        "abstract_submitted": "2016-02-01 11:39:54",
        "abstract_status": "accepted:poster",
        "registration_number": 77,
        "registration_submitted": "2016-05-11 08:32:10",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Paweł",
        "last_name": "Niegodajew",
        "email": "niegodajew@imc.pcz.czest.pl",
        "degree": "M.Sc.",
        "org": "Częstochowa University of Technology",
        "dept": "Department on Mechanical Engineering and Computer Science",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Numerical modelling of liquid spreading in a packed bed",
        "keywords": [
            "Multiphase flows",
            "Computational methods",
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "Paweł Niegodajew",
                "affil": "Czestochowa University of Technology, Institute of Thermal Machinery al. Armii Krajowej 21, 42-200 Czestochowa, Poland",
                "affil_id": 0
            },
            {
                "name": "Dariusz Asendrych",
                "affil": "Czestochowa University of Technology, Institute of Thermal Machinery al. Armii Krajowej 21, 42-200 Czestochowa, Poland",
                "affil_id": 0
            }
        ],
        "affils": [
            "Czestochowa University of Technology, Institute of Thermal Machinery al. Armii Krajowej 21, 42-200 Czestochowa, Poland"
        ],
        "content": "The paper deals with the numerical modelling of gas-liquid flow in a random packed bed. Model geometry and setup follows a small laboratory installation serving as a reference. The Euler-Euler approach was applied to treat the 2-phase system in 3-dimensional domain. In order to properly predict the interactions between phases the physical model of a gravity driven liquid film, flowing countercurrently to the gas phase, was adopted according to Billet (1995). \\\\The model was developed in Ansys Fluent environment and the phase interactions as well as packed bed characteristics were implemented with the use of a user-defined function, a subroutine linked to the code.\\\\Test calculations have shown a very good agreement with the experimental trials. The sample results in form of liquid volume fractions for two selected moments in time are presented in Fig. 1.\\\\\\textbf{Acknowledgements:}\\\\The study was performed within the framework of the contract: DEC-2014/15/B/ST8/04762 founded by National Science Centre.",
        "image": "images/057.png",
        "image_squared": "images/057-squared.png",
        "image_caption": "Visualisation of liquid spreading in packed bed. As can be seen from each view the liquid spreads in both axial and horizontal direction in time occupying continuously growing area of porous region."
    },
    {
        "abstract_number": 59,
        "abstract_submitted": "2016-02-01 13:53:28",
        "abstract_status": "accepted:oral",
        "registration_number": 61,
        "registration_submitted": "2016-04-29 11:24:40",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "David",
        "last_name": "Parker",
        "email": "dap58@cam.ac.uk",
        "degree": "M.Sc.",
        "org": "University of Cambridge",
        "dept": "Department of Applied Mathematics and Theoretical Physics",
        "country": "United Kingdom",
        "country_code": "GB",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Entrainment by turbulent plumes",
        "keywords": [
            "Experimental techniques",
            "Applied fluid dynamics",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Henry Burridge",
                "affil": "University of Cambridge",
                "affil_id": 0
            },
            {
                "name": "Jamie Partridge",
                "affil": "University of Cambridge",
                "affil_id": 0
            },
            {
                "name": "Emily Kruger",
                "affil": "University of Cambridge",
                "affil_id": 0
            },
            {
                "name": "David Parker",
                "affil": "University of Cambridge",
                "affil_id": 0
            },
            {
                "name": "Paul Linden",
                "affil": "University of Cambridge",
                "affil_id": 0
            }
        ],
        "affils": [
            "University of Cambridge"
        ],
        "content": "Plumes are of relevance to nature and real consequence to industry. Whilst the Morton, Taylor \\& Turner (1956) plume model is able to estimate the mean physical flux parameters, the process of entrainment is only parametrised in a time-averaged sense. Indeed, a deep understanding of turbulent entrainment is not widespread. We perform simultaneous PIV and plume-edge detection on a saline plume in water. We identify that significant mass is transported in regions of relatively high-momentum fluid between the large scale edges. This suggests that the large scale processes, whereby ambient fluid is engulfed into the plume, contribute significantly to the entrainment. This is in contrast to recent studies which have identified small scale nibbling as the dominant process. It may therefore be illuminating to consider entrainment as a series of distinct but interlinked processes occurring at multiple scales with each imparting a characterisation of plume fluid to the ambient.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 60,
        "abstract_submitted": "2016-02-01 14:45:21",
        "abstract_status": "accepted:poster",
        "registration_number": 75,
        "registration_submitted": "2016-05-11 08:16:39",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Mariusz",
        "last_name": "Księżyk",
        "email": "ksiezykm@imc.pcz.czest.pl",
        "degree": "M.Sc.",
        "org": "Czestochowa University of Technology",
        "dept": "Faculty of Mechanical Engineering and Computer Science",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "LES-IB study of mixing intensification by twisted polygonal orifices",
        "keywords": [
            "Computational methods",
            "Turbulence",
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "Mariusz Księżyk",
                "affil": "Czestochowa University of Techology",
                "affil_id": 0
            }
        ],
        "affils": [
            "Czestochowa University of Techology"
        ],
        "content": "A detailed insight into the mixing processes occurring under the turbulent flow may lead to noticeable improvement of efficiency, safety and performance of various industrial applications. It enables analysis of phenomena occurring during passive mixing control, which is often a result of trial-and-error approach and is based on geometric shaping and adding fixed elements. \\\\In present study we analyze the passive mixing obtained by twisted polygonal orifices in a straight cylindrical pipe. The role of twisted orifices is to intensify the mixing of large and small turbulent scales which potentially will lead to better mixing characteristics downstream of the pipe exit. The research is performed using the Large Eddy Simulation approach combined with an Immersed Boundary method to enable the analysis of objects with high spatial complexity. We will compare objects with various shapes (circle, square, hexagram, hexagon) and quantify their impact on the mixing efficiency.",
        "image": "images/060.png",
        "image_squared": "images/060-squared.png",
        "image_caption": "Isosurface of an instantaneous value of Q-parameter (Q=4000) collored by the velocity magnitude.The results obtained for mesh 160x192x160 and Vreman SGS model."
    },
    {
        "abstract_number": 61,
        "abstract_submitted": "2016-02-01 14:54:15",
        "abstract_status": "accepted:poster",
        "registration_number": 6,
        "registration_submitted": "2016-03-24 08:32:16",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Sergey",
        "last_name": "Skripkin",
        "email": "skryp91@mail.ru",
        "degree": "M.Sc.",
        "org": "Institute of Thermophysics SB RAS",
        "dept": "",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Formation of vortex ring in the simplified draft tube model",
        "keywords": [
            "Applied fluid dynamics",
            "Multiphase flows",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Skripkin S. G.",
                "affil": "Institute of Thermophysics SB RAS",
                "affil_id": 0
            },
            {
                "name": "Tsoy M. A.",
                "affil": "Institute of Thermophysics SB RAS",
                "affil_id": 0
            },
            {
                "name": "Kuibin P.A.",
                "affil": "Institute of Thermophysics SB RAS",
                "affil_id": 0
            },
            {
                "name": "Shtork S. I.",
                "affil": "Institute of Thermophysics SB RAS",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute of Thermophysics SB RAS"
        ],
        "content": "Vortex rope are formed in a draft tube of hydraulic turbines operating at part or over load conditions. The residual swirl in the draft tube conical diffuser leads to vortex breakdown known as precessing vortex core. There are some operating conditions close to upper part load under which aperiodical pulsations are also observed apart from synchronous pressure pulsation induced by precessing vortex rope. In such regimes vortex rope losses its stability. Parts of helix close in to each other and reconnection appears with formation of a vortex ring. We suppose that the formation of a vortex ring may cause aperiodic pressure pulsations inside the turbine draft tubes. This phenomenon was investigated using high-speed visualization technique, which gave a better understanding of this process.",
        "image": "images/061.jpg",
        "image_squared": "images/061-squared.jpg",
        "image_caption": "Precessing vortex core and vortex ring visualised by cavitation in a conical part of draft tube model"
    },
    {
        "abstract_number": 64,
        "abstract_submitted": "2016-02-02 10:56:09",
        "abstract_status": "accepted:poster",
        "registration_number": 37,
        "registration_submitted": "2016-04-18 09:40:59",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Michał",
        "last_name": "Marijnissen",
        "email": "mmarijn@ippt.pan.pl",
        "degree": "M.Sc.",
        "org": "Polish Academy of Sciences",
        "dept": "Institute of Fundamental Technological Research",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Particle-fluid interaction inside a fan mill",
        "keywords": [
            "Multiphase flows"
        ],
        "authors": [
            {
                "name": "Michał Jakub Marijnissen",
                "affil": "Institute of Fundamental Technological Research, Polish Academy of Sciences",
                "affil_id": 0
            },
            {
                "name": "Jerzy Rojek",
                "affil": "Institute of Fundamental Technological Research, Polish Academy of Sciences",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute of Fundamental Technological Research, Polish Academy of Sciences"
        ],
        "content": "Fan mills, although generally used in coal comminution, show potential for the use with other minerals. They achieve high internal fluid velocities due to a spinning flywheel with its axis of revolutions normal to the flow. After hitting the flywheel, the ore is shed upward into a filter, where particles small enough are passed further on towards the next process stage. Particles considered too big are recirculated back onto the flywheel. In this work a trajectory study of copper ore particles through a fan mill was performed with the use of a commercial CFD code, ANSYS Fluent, coupled two-way with DEM (Discrete Element Method). Particles of different sizes were analysed. Results highlight ore behaviour, fluid flow conditions and mark places requiring geometrical improvements.",
        "image": "images/064.png",
        "image_squared": "images/064-squared.png",
        "image_caption": "Results obtained for flywheel domain, particle coloured by diameter {[}\\(m\\){]}. Small particles show an outer side dominance whilst bigger particles tend to leave the domain near the inner-middle side."
    },
    {
        "abstract_number": 66,
        "abstract_submitted": "2016-02-02 20:55:52",
        "abstract_status": "accepted:oral",
        "registration_number": 44,
        "registration_submitted": "2016-04-22 06:40:32",
        "registration_status": "payment_accepted",
        "gender_title": "",
        "first_name": "Mathias",
        "last_name": "Romańczyk",
        "email": "mathias@imc.pcz.czest.pl",
        "degree": "M.Sc.",
        "org": "Czestochowa University of Technology",
        "dept": "Faculty of Mechanical Engineering and Computer Science, Institute of Thermal Machinery",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Impact of strong pressure gradient on mean flow properties of turbulent boundary layer",
        "keywords": [
            "Turbulence",
            "Wall-bounded flows"
        ],
        "authors": [
            {
                "name": "MSc. Mathias Romanczyk",
                "affil": "Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Institute of Thermal Machinery",
                "affil_id": 0
            },
            {
                "name": "Prof. Witold Elsner",
                "affil": "Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Institute of Thermal Machinery",
                "affil_id": 0
            },
            {
                "name": "PhD Artur Dróżdż",
                "affil": "Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Institute of Thermal Machinery",
                "affil_id": 0
            }
        ],
        "affils": [
            "Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Institute of Thermal Machinery"
        ],
        "content": "The research is devoted to experimental analysis of turbulent boundary layer developed under the influence of strong adverse pressure gradient at the flat plate. The main part of this work concerns the analysis of the streamwise fluctuating velocity and mean velocity profiles as well as boundary layer global parameters. The particular goal of the study was to identify the Transitory Detachment (ITD) point, where the reverse flow occurs about 20\\% of the total time. For the purposes various separation criteria were discussed.\\\\The experiment was carried out in low speed wind tunnel for three different adverse pressure gradients. The adverse pressure gradient is controlled by curvature of the upper wall and by flow suction at the same location. In the experiment hotwire anemometry technique was applied.",
        "image": "images/066.jpg",
        "image_squared": "images/066-squared.jpg",
        "image_caption": "Distribiution of fluctuation velocity. The outer peak overcomes the inner one. It can be concluded also that the inner peak is no longer present for the strong Adverse Pressure Gradient (APG)."
    },
    {
        "abstract_number": 67,
        "abstract_submitted": "2016-02-03 08:54:00",
        "abstract_status": "accepted:poster",
        "registration_number": 55,
        "registration_submitted": "2016-04-28 18:58:29",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Agnieszka",
        "last_name": "Rosiak",
        "email": "rosiaka@imc.pcz.czest.pl",
        "degree": "M.Sc.",
        "org": "Czestochowa University of Technology",
        "dept": "Institute of Thermal Machinery",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Numerical modelling of auto-ignition in turbulent mixing layer",
        "keywords": [
            "Computational methods",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Agnieszka Rosiak",
                "affil": "Czestochowa University of Technology, Institute of Thermal Machinery",
                "affil_id": 0
            }
        ],
        "affils": [
            "Czestochowa University of Technology, Institute of Thermal Machinery"
        ],
        "content": "Generally, the turbulent combustion process, being a result of the two-way interaction of chemical reactions and turbulent structures, is dominated by strongly unsteady phenomena (e.g. auto-ignition, local extinction, flame stabilisation) characterized by significant oscillations of all flow variables. The present work aims to extend knowledge on physics of auto-ignition problem and identify the influence of the turbulent flow conditions and numerical methods on the occurrence of auto-ignition, ignition time, localisation of flame kernel and its propagation. The Direct Numerical Simulation (DNS) and Implicit Large Eddy Simulation (ILES) approaches are used to study the auto-ignition in a temporally evolving mixing layer between two separate streams, cold fuel (hydrogen, methane)/hot air, moving in opposite directions or being stagnant. The analysis is performed for a wide range of the initial conditions (e.g. initial turbulent scales, size of the shear layer) and numerical methods.",
        "image": "images/067.png",
        "image_squared": "images/067-squared.png",
        "image_caption": "Sample DNS results. Instantaneous temperature contours in cross section in centre of the three dimensional computational domain. Subfigures show the flame propagation along the vortex structure."
    },
    {
        "abstract_number": 71,
        "abstract_submitted": "2016-02-05 10:07:46",
        "abstract_status": "accepted:oral",
        "registration_number": 1,
        "registration_submitted": "2016-03-23 11:11:09",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Robert",
        "last_name": "Kaiser",
        "email": "robert.kaiser@tu-ilmenau.de",
        "degree": "Ph.D.",
        "org": "Technische Universitaet Ilmenau",
        "dept": "Institut of Thermodynamics and Fluid Mechanics",
        "country": "Germany",
        "country_code": "DE",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Turbulent Rayleigh-Bénard convection: unrevelead insights into the near-wall transport process",
        "keywords": [
            "Wall-bounded flows",
            "Convection",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Robert Kaiser",
                "affil": "Technische Universität Ilmenau, Institut of Thermodynamics and Fluid Mechanics, Germany",
                "affil_id": 0
            },
            {
                "name": "Christian Resagk",
                "affil": "Technische Universität Ilmenau, Institut of Thermodynamics and Fluid Mechanics, Germany",
                "affil_id": 0
            },
            {
                "name": "Ronald du Puits",
                "affil": "Technische Universität Ilmenau, Institut of Thermodynamics and Fluid Mechanics, Germany",
                "affil_id": 0
            }
        ],
        "affils": [
            "Technische Universität Ilmenau, Institut of Thermodynamics and Fluid Mechanics, Germany"
        ],
        "content": "The three dimensional velocity field in the vicinity of the cooling plate inside a Rayleigh-Benard convection cell is experimentally investigated at Rayleigh numbers between \\(10^{8}\\leq Ra\\leq 10^{12}\\) using tomographic PIV. This flow region was intensively analysed by direct numerical simulations (Schumacher et al., Shishkina et al., Shi et al.), while experimental data sets of the all velocity components are restricted to a single point (Li et al.). In the past, du Puits et al. have shown that the convective boundary layer is already in a transition to turbulence at \\(Ra=10^{10}\\), whereas theoretical predictions of the vertical heat flux are assuming either laminar or turbulent boundary approaches. In order to capture the complexity of this strongly three dimensional flow field, we performed tomographic velocity measurements in a volume of \\((40x40x20)mm^{2}\\) closed to the cooling plate of the Barrel of Ilmenau at different Ra. The results will be presented on the conference.",
        "image": "images/071.png",
        "image_squared": "images/071-squared.png",
        "image_caption": "Measurement set-up of the tomographic particle image velocimeter at the cooling plate of the Barrel of Ilmenau: four scientific CMOS cameras \\((2560 x 2160)px^{2}\\) @ 25Hz in double frame mode, 100mJ double pulse LASER, 5\\(\\mu m\\) aerosol particles of DEHS"
    },
    {
        "abstract_number": 72,
        "abstract_submitted": "2016-02-05 17:19:28",
        "abstract_status": "accepted:poster",
        "registration_number": 79,
        "registration_submitted": "2016-05-11 12:54:53",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Lukasz",
        "last_name": "Klotz",
        "email": "lukasz.klotz@espci.fr",
        "degree": "M.Sc.",
        "org": "Laboratoire PMMH",
        "dept": "CNRS-ESPCI-Paris 6-Paris 7",
        "country": "France",
        "country_code": "FR",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "New experiment in plane Couette-Poiseuille flow with zero mean advection velocity: transition to turbulence and observation of stationary turbulent spot",
        "keywords": [
            "Wall-bounded flows",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "KLOTZ Lukasz",
                "affil": "PMMH, CNRS - ESPCI - Paris 6 -Paris 7, France",
                "affil_id": 0
            },
            {
                "name": "FRONTCZAK Idalia",
                "affil": "PMMH, CNRS - ESPCI - Paris 6 -Paris 7, France; IAAM, WUT, Poland",
                "affil_id": 1
            },
            {
                "name": "LEMOULT Grégoire",
                "affil": "IST, Austria",
                "affil_id": 2
            },
            {
                "name": "CHANTRY Matthiew",
                "affil": "PMMH, CNRS - ESPCI - Paris 6 -Paris 7, France",
                "affil_id": 0
            },
            {
                "name": "WESFREID José Eduardo",
                "affil": "PMMH, CNRS - ESPCI - Paris 6 -Paris 7, France",
                "affil_id": 0
            }
        ],
        "affils": [
            "PMMH, CNRS - ESPCI - Paris 6 -Paris 7, France",
            "PMMH, CNRS - ESPCI - Paris 6 -Paris 7, France; IAAM, WUT, Poland",
            "IST, Austria"
        ],
        "content": "We introduce an experimental set-up that enables us to create two dimensional shear flow with zero mean advection velocity. We investigate a plane Couette-Poiseuille configuration, completing the first experimental results for this flow which had only been studied theoretically to-date (\\textbackslash{}cite\\{CP\\_Ber\\}). Using flow visualizations we characterize subcritical transition to turbulence and we show the existence of turbulent spots in plane Couette-Poiseuille flow. Due to zero mean advection velocity of the base profile, these turbulent structures are nearly stationary (despite a non-zero pressure gradient in streamwise direction). We ascertain two characteristic wavenumbers correspond to two different inner regions of the base flow. We also determine the evolution of streamwise and spanwise dimensions of turbulent spot as a function of Reynolds number.",
        "image": "images/072.png",
        "image_squared": "images/072-squared.png",
        "image_caption": "Schematic of the new experimental set-up, where the upper loop (red lines) is used to generate the plane Couette-Poiseuille flow with zero mean advection velocity (black profile in the inset)."
    },
    {
        "abstract_number": 73,
        "abstract_submitted": "2016-02-06 18:25:38",
        "abstract_status": "accepted:poster",
        "registration_number": 88,
        "registration_submitted": "2016-05-15 17:11:23",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Benmalek",
        "last_name": "Toufik",
        "email": "t.benmalek@yahoo.fr",
        "degree": "M.Sc.",
        "org": "UNIVERSITY OF SCIENCES AND TECHNOLOGY HOUARI BOUMEDIENE",
        "dept": "FACULTY OF PHYSICS",
        "country": "Algeria",
        "country_code": "DZ",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Mixed convection of Bingham fluid",
        "keywords": [
            "Convection",
            "Computational methods",
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "S.Ferhat",
                "affil": "FACULTY OF PHYSICS, UNIVERSITY OF SCIENCES AND TECHNOLOGY HOUARI BOUMEDIENE",
                "affil_id": 0
            },
			{
                "name": "B. Toufik",
                "affil": "FACULTY OF PHYSICS, UNIVERSITY OF SCIENCES AND TECHNOLOGY HOUARI BOUMEDIENE",
                "affil_id": 0
            }

        ],
        "affils": [
            "FACULTY OF PHYSICS, UNIVERSITY OF SCIENCES AND TECHNOLOGY HOUARI BOUMEDIENE"
        ],
        "content": "Mixed convection fluid flow and heat transfer of Bingham fluid in a lid-driven square cavity is numerically investigated. The governing equations are solved numerically using the finite volume method . A parametric study is performed and the effects of the Richardson and Bingham numbers on the flow pattern and heat transfer inside the cavity are investigated. It is found that the mean Nusselt number (Nu) increases with decreasing values of Richardson number for both Newtonian and Bingham fluids. However, Nu values obtained for Bingham fluids are smaller than that obtained in the case of Newtonian fluids with the same nominal value of Richardson number (Ri) due to weakening of convective transport. The mean Nusselt number Nu in the case of Bingham fluids is found to decrease with increasing Bingham number, and, for large values of Bingham number Bn, the value settles to unity ( Nu = 1.0) as heat transfer takes place principally due to thermal conduction.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 74,
        "abstract_submitted": "2016-02-09 13:46:14",
        "abstract_status": "accepted:oral",
        "registration_number": 43,
        "registration_submitted": "2016-04-21 10:16:21",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Konrad",
        "last_name": "Kamieniecki",
        "email": "kkamieniecki@meil.pw.edu.pl",
        "degree": "M.Sc.",
        "org": "Warsaw University of Technology",
        "dept": "Faculty of Mechatronics",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Pressure waves and basilar membrane vibrations in human inner ear calculated by means of Fluid Structure Interaction (FSI) model",
        "keywords": [
            "Computational methods",
            "Biofluids",
            "Inner ear"
        ],
        "authors": [
            {
                "name": "Konrad Kamieniecki",
                "affil": "Institute of Micromechanics and Photonics , Warsaw University of Technology",
                "affil_id": 0
            },
            {
                "name": "Janusz Piechna",
                "affil": "Institute of Aeronautics and Applied Mechanics ,  Warsaw University of Technology",
                "affil_id": 1
            },
            {
                "name": "Paweł Borkowski",
                "affil": "Institute of Aeronautics and Applied Mechanics ,  Warsaw University of Technology",
                "affil_id": 1
            }
        ],
        "affils": [
            "Institute of Micromechanics and Photonics , Warsaw University of Technology",
            "Institute of Aeronautics and Applied Mechanics ,  Warsaw University of Technology"
        ],
        "content": "The work presents the results of our research on human inner ear modelling. The inner ear mechanics, particulary cochlear mechanics, is not fully understood yet. Our new FSI model creates the possibility to virtually explore cochlear macro-mechanics, taking into account the interaction between the soft tissues and pressure distributions in the cochlea.A 3D FSI model of the uncoiled cochlea was built and validated based experimental data. The new FSI model was used to study basilar membrane deflections and pressure distribution in the cochlea at three excitation frequencies: 2.5, 5 and 10kHz. The model was validated against experimental data. The model gives interesting information which can be helpful in the inner ear mechanics study.The cochlea physiology can be well simulated by our new FSI model. Differential perilymph pressures, derived from the FSI model may be used to analyse the effectiveness of cochlear stimulation by various hearing reconstruction methods.",
        "image": "images/074.jpg",
        "image_squared": "images/074-squared.jpg",
        "image_caption": "Pressure distribution in the scala vestibuli of the cochlea measured on points placed along the basilar membrane. Length on the charts is measured in reference to the basilar membrane base."
    },
    {
        "abstract_number": 77,
        "abstract_submitted": "2016-02-10 12:17:24",
        "abstract_status": "accepted:poster",
        "registration_number": 41,
        "registration_submitted": "2016-04-19 10:22:13",
        "registration_status": "payment_accepted",
        "gender_title": "",
        "first_name": "Miloslav",
        "last_name": "Dohnal",
        "email": "dohnal@upei.fme.vutbr.cz",
        "degree": "M.Sc.",
        "org": "Brno University of Technology",
        "dept": "Institute of Process Engineering",
        "country": "Czech Republic",
        "country_code": "CZ",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Investigation of undesirable flow-mesh alignment in rotating pipe flow",
        "keywords": [
            "Turbulence",
            "Wall-bounded flows",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Miloslav Dohnal",
                "affil": "Brno University of Technology, Institute of Process Engineering",
                "affil_id": 0
            },
            {
                "name": "Jiří Hájek",
                "affil": "Brno University of Technology, Institute of Process Engineering",
                "affil_id": 0
            }
        ],
        "affils": [
            "Brno University of Technology, Institute of Process Engineering"
        ],
        "content": "There are many industrial applications where swirling turbulent flow occurs; and can have major contribution to overall results, i.e. rotary machines, swirling burners etc.\n\nIn this work, emphasis is put on investigation of swirling pipe flow using Scale-Adaptive Simulation (SAS). The test case consists of pipe with 50 mm in diameter and 100d in length, with solid body rotation on the inlet boundary. Downstream the inlet, there is a contraction ring which generates global flow instability and reduces development length of the fluid flow.\n\nOur research has revealed strong influence of spatial discretization on flow field variables, especially in the wake of the contraction ring, where boundary layer becomes detached. Multiple grids with different topologies have been analysed and results provide guidance for grid construction. Additionally, (U)RANS models have been shown seriously lacking in thedescription of swirling flows.",
        "image": "images/077.png",
        "image_squared": "images/077-squared.png",
        "image_caption": "Contours of instantaneous velocity magnitude at dimensionless distance l/d = 3 from swirler and time t = 1s"
    },
    {
        "abstract_number": 78,
        "abstract_submitted": "2016-02-10 21:02:10",
        "abstract_status": "accepted:poster",
        "registration_number": 56,
        "registration_submitted": "2016-04-28 19:06:03",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Karol",
        "last_name": "Wawrzak",
        "email": "wawrzak@imc.pcz.czest.pl",
        "degree": "M.Sc.",
        "org": "Czestochowa University of Technology",
        "dept": "Institute of Thermal Machinery",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Numerical analysis of side jets formation in a round jet",
        "keywords": [
            "Computational methods",
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "Karol Wawrzak",
                "affil": "Czestochowa University of Technology, Institute of Thermal Machinery",
                "affil_id": 0
            }
        ],
        "affils": [
            "Czestochowa University of Technology, Institute of Thermal Machinery"
        ],
        "content": "The side jets were observed during experimental study of a globally unstable and externally modulated round jets and they were seen as a small jets gushed from a main jet stream. The contemporary Computational Fluid Dynamics (CFD) offers advanced numerical tools, which can accompany the experimental analysis. The present work concerns the numerical analysis of an externally excited round jet at various initial conditions and draws particular attention on the impact of the numerical approach on the formation of the side jets, their number and localisation. The side jets are very sensitive to external disturbances, even those originating from discretisation. From the point of view of data validation, the potential influence of the numerical approach on the physics of the flow has to be known and any artificial impact should be excluded. The research is performed applying Large Eddy Simulation method and high-order codes based on Cartesian and cylindrical coordinate systems.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 79,
        "abstract_submitted": "2016-02-11 01:47:07",
        "abstract_status": "accepted:poster",
        "registration_number": 29,
        "registration_submitted": "2016-04-12 14:48:07",
        "registration_status": "payment_accepted",
        "gender_title": "Mx.",
        "first_name": "Joana",
        "last_name": "Andrade",
        "email": "mja@ic.ac.uk",
        "degree": "Ph.D.",
        "org": "Imperial College London",
        "dept": "Department of mathematics",
        "country": "United Kingdom",
        "country_code": "GB",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Vertical Transport in Time-Dependent Salt-Finger Regimes",
        "keywords": [
            "Convection",
            "Geophysical flows"
        ],
        "authors": [
            {
                "name": "Joana Andrade",
                "affil": "Department of Mathematics Imperial College London",
                "affil_id": 0
            }
        ],
        "affils": [
            "Department of Mathematics Imperial College London"
        ],
        "content": "Salt-fingering is a type of double-diffusive convection, a non-isopycnic transport process driven by buoyancy effects caused by the presence in a fluid of two agents with different diffusivities, commonly denoted T and S. Described in 1956 as an oceanographic curiosity, salt fingers are now recognized as an important mechanism for vertical transport in fluids and have been reported in contexts as diverse as geophysics, astrophysics, oceanography, material sciences and engineering. \\\\ Salt finger systems are frequently modelled assuming constant linear vertical backgrounds of T and S, which leads to a steady or quasi-steady transport with a constant flux ratio of the agents. However, relaxing the constraints on the vertical backgrounds leads to time dependent regimes with complex patterns of vertical transport, conditioned mainly by the efficiency of the systems as releasers of potential energy and by the degree of imbalance in the vertical transport of the agents. ",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 81,
        "abstract_submitted": "2016-02-11 09:31:14",
        "abstract_status": "accepted:poster",
        "registration_number": 26,
        "registration_submitted": "2016-04-11 10:34:01",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Paweł",
        "last_name": "Jonak",
        "email": "pjonak@meil.pw.edu.pl",
        "degree": "M.Sc.",
        "org": "Warsaw University of Technology",
        "dept": "Faculty of Power and Aeronautical Engineering, Institute of Aeronautics and Applied Mechanics",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Increasing the intensity of the interstage heat transfer in the axial compressor",
        "keywords": [
            "Heat transfer",
            "Aerodynamics"
        ],
        "authors": [
            {
                "name": "Paweł Jonak",
                "affil": "Warsaw University of Technology, Faculty of Power and Aeronautical Engineering, Institute of Aeronautics and Applied Mechanics",
                "affil_id": 0
            },
            {
                "name": "Janusz Piechna",
                "affil": "Warsaw University of Technology, Faculty of Power and Aeronautical Engineering, Institute of Aeronautics and Applied Mechanics",
                "affil_id": 0
            }
        ],
        "affils": [
            "Warsaw University of Technology, Faculty of Power and Aeronautical Engineering, Institute of Aeronautics and Applied Mechanics"
        ],
        "content": "Isobaric air cooling between the axial compressor stages causes reduction of compression work and increase efficiency of device. New concept of interstage cooling system uses liquid to transfer heat from one place to another. Heat transfer medium could be water or carbon dioxide at high pressure. Compressor stators are used as the heat exchange elements. The main problem is limited area of heat exchange between stator blades and air and not sufficient heat transfer intensity outside of the boundary thermal layer. Intensification of heat transfer process could be realized by compressor stators geometry modifications. Numerical simulation of flow in compressor cascade was performed. Analysis shows that proposed stator geometry changes provide better mixing of fluid at different temperatures and more uniform temperature distribution downstream stators.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 87,
        "abstract_submitted": "2016-02-12 11:45:36",
        "abstract_status": "accepted:poster",
        "registration_number": 83,
        "registration_submitted": "2016-05-12 12:20:01",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Michał",
        "last_name": "Olejnik",
        "email": "michal.olejnik@imp.gda.pl",
        "degree": "M.Sc.",
        "org": "Institute of Fluid-Flow Machinery",
        "dept": "",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Modelling of flow around the obstacles with the Smoothed Particle Hydrodynamics approach",
        "keywords": [
            "Computational methods",
            "Wall-bounded flows",
            "Meshless methods"
        ],
        "authors": [
            {
                "name": "Michał Olejnik",
                "affil": "Institute of Fluid-Flow Machinery, Gdańsk University of Technology",
                "affil_id": 0
            },
            {
                "name": "Jacek Pozorski",
                "affil": "Institute of Fluid-Flow Machinery",
                "affil_id": 1
            }
        ],
        "affils": [
            "Institute of Fluid-Flow Machinery, Gdańsk University of Technology",
            "Institute of Fluid-Flow Machinery"
        ],
        "content": "Smoothed Particle Hydrodynamics (SPH) is a meshless, particle based method for fluid-flow modelling. Main idea behind it, is to interpolate fields within the range of the so-called smoothing length for discrete particles representing continuous medium. Governing equations are then solved by calculating interactions between them. There is no universal SPH formulation for fluid-flow computations. Depending on purpose and assumptions, different forms of governing equations in SPH language can be obtained. Because of this the method itself is still object of intense research and development.\n\nIn the present study we apply SPH to simulate flow of incompressible, viscous fluid around obstacles. Our main goal is to determine which SPH formulation, kernel interpolation function and boundary conditions implementation yields most accurate predictions. For that purpose a number of simulations have been performed and their results compared.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 88,
        "abstract_submitted": "2016-02-12 12:01:32",
        "abstract_status": "accepted:oral",
        "registration_number": 84,
        "registration_submitted": "2016-05-12 12:20:19",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Michal",
        "last_name": "Lewandowski",
        "email": "milewandowski@imp.gda.pl",
        "degree": "M.Sc.",
        "org": "Institute of Fluid-Flow Machinery",
        "dept": "",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Turbulent combustion modelling with OpenFOAM: simulation of the non-premixed syngas flame",
        "keywords": [
            "Combustion",
            "Turbulence",
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "Michał T. Lewandowski",
                "affil": "Institute of Fluid-Flow Machinery, Gdańsk University of Technology",
                "affil_id": 0
            },
            {
                "name": "Jacek Pozorski",
                "affil": "Institute of Fluid-Flow Machinery",
                "affil_id": 1
            }
        ],
        "affils": [
            "Institute of Fluid-Flow Machinery, Gdańsk University of Technology",
            "Institute of Fluid-Flow Machinery"
        ],
        "content": "Turbulent combustion is a phenomenon of multi-scale nature and its modelling is a challenge, mainly due to turbulence and complex chemical kinetics. The key problem is related to the unknown expression for the mean reaction rate. The modelling based on the physical analysis of the phenomena is needed. Those methods are commonly referred to as combustion models or more precisely turbulence-chemistry interaction models.\n\nIn this work, we present numerical simulations of the turbulent non-premixed syngas flame in the configuration of axisymmetric jet also known as Sandia CHN flame B. The assessment of two turbulence-chemistry interaction models has been investigated using opensource software OpenFOAM. The Partially Stirred Reactor model and the Eddy Dissipation Concept have been tested together with different chemical kinetic schemes. Turbulence closure has been obtained with selected versions of the two equation \\(k-\\epsilon \\) model. Large Eddy Simulation will also be attempted.",
        "image": "images/088.jpg",
        "image_squared": "images/088-squared.jpg",
        "image_caption": "Temperature distribution along the axis for CHN flame B obtained with PaSR model FFR chemical kinetic scheme and four different versions of \\(k-\\epsilon \\) turbulence model."
    },
    {
        "abstract_number": 89,
        "abstract_submitted": "2016-02-12 12:41:58",
        "abstract_status": "accepted:poster",
        "registration_number": 95,
        "registration_submitted": "2016-05-18 14:32:52",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Mikolaj",
        "last_name": "Krutnik",
        "email": "mikolaj.krutnik@gmail.com",
        "degree": "B.Sc.",
        "org": "Warsaw University of Technolog",
        "dept": "Institute of Aeronautics and Applied Mechanics, Poland",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Flow structures behind the rotating bluff bodies",
        "keywords": [
            "Flow structures behind bluff bodies"
        ],
        "authors": [
            {
                "name": "M.Krutnik",
                "affil": "*Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics, Poland",
                "affil_id": 0
            },
            {
                "name": "M.Skarysz",
                "affil": "*Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics, Poland",
                "affil_id": 0
            },
            {
                "name": "K.Gibinski",
                "affil": "*Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics, Poland",
                "affil_id": 0
            },
            {
                "name": "S.Goujon-Durand",
                "affil": "École Supérieure de Physique et de Chimie Industrielles de Ville de Paris, ESPCI, PMMH, UMR7636 CNRS ESPCI P6-P7, France",
                "affil_id": 1
            },
            {
                "name": "J.E.Wesfreid",
                "affil": "École Supérieure de Physique et de Chimie Industrielles de Ville de Paris, ESPCI, PMMH, UMR7636 CNRS ESPCI P6-P7, France",
                "affil_id": 1
            }
        ],
        "affils": [
            "*Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics, Poland",
            "École Supérieure de Physique et de Chimie Industrielles de Ville de Paris, ESPCI, PMMH, UMR7636 CNRS ESPCI P6-P7, France"
        ],
        "content": "The wake and its instabilities behind rotating sphere and a simplified model of propeller were investigated for moderate Reynoldsnumbers, in a low- velocity water channel. We observed different vortex structures with LIF method and the velocity field was measured with PIV. The influence of rotation speed on vortex shape and size was analysed. The explored range of Reynolds number was from 0 to 400 and the swirl or rotation parameter $\\Omega$ was not higher than 4 for the sphere and 2 for the rotor. For non-rotating bodies, is very well know the existence of various flow regimes with axisymmetric base flow, pairs of stationary counter-rotating vortices, and unsteady vortex shedding with hairpins. We described the occurrence of new regimes in presence of rotation with lower and higher helical modes. In this talk new results about the non-linear evolution of the instability modes are presented.",
        "image": "images/089.jpg",
        "image_squared": "images/089-squared.jpg",
        "image_caption": "Visualisation, vorticity fields and temporal reconstruction of vorticity\\\\(with and without mode zero) for Re=250 for various $\\Omega$"
    },
    {
        "abstract_number": 90,
        "abstract_submitted": "2016-02-12 12:54:32",
        "abstract_status": "accepted:poster",
        "registration_number": 58,
        "registration_submitted": "2016-04-29 05:40:32",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Elena",
        "last_name": "Mosheva",
        "email": "mosheva@icmm.ru",
        "degree": "M.Sc.",
        "org": "Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science (ICMM UB RAS)",
        "dept": "Laboratory of Hydrodynamic Stability",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Chemoconvective structures driven by a neutralization reaction between miscible liquids",
        "keywords": [
            "Convection",
            "Multiphase flows",
            "Miscible fluids"
        ],
        "authors": [
            {
                "name": "Mosheva Elena",
                "affil": "Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science (ICMM UB RAS)",
                "affil_id": 0
            },
            {
                "name": "Mizev Alexey",
                "affil": "Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science (ICMM UB RAS)",
                "affil_id": 0
            },
            {
                "name": "Kostarev Konstantin",
                "affil": "Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science (ICMM UB RAS)",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science (ICMM UB RAS)"
        ],
        "content": "In the paper the results of the experimental investigation of convective instabilities driven by an acid-base neutralization reaction are reported. Experiments were performed in a Hele-shaw cell. Aqueous solutions of nitric acid and alkali metal hydroxides (Li, Na, K) were used as reactants. Depending on the initial reactants concentration, two reaction modes are observed. The first one is a diffusion mode, where the predominant mass transfer mechanism is diffusion, leading to slow rates of reaction and the second one is convective regime characterizing by the formation of the intense convective motion and rapid reaction. Moreover a new type of instability was found (Fig.1). Physical model of the observed phenomenon and maps of regimes for various pairs \"acid - base\" have been proposed.\n\nThe work was supported by the RFBR (project 16-31-00251 and 15-01-04842).",
        "image": "images/090.png",
        "image_squared": "images/090-squared.png",
        "image_caption": "Visualization of the regular convective structure, formed in the reaction zone by adding the color indicator."
    },
    {
        "abstract_number": 92,
        "abstract_submitted": "2016-02-12 14:25:00",
        "abstract_status": "accepted:poster",
        "registration_number": 97,
        "registration_submitted": "2016-05-31 09:18:31",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Supratik",
        "last_name": "Banerjee",
        "email": "biswayan@gmail.com",
        "degree": "Ph.D.",
        "org": "Universitaet zu Koeln",
        "dept": "Institut fuer Geophysik und Meteorologie",
        "country": "Germany",
        "country_code": "DE",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Exact scaling relation for Self-Gravitating Isothermal Turbulence",
        "keywords": [
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Supratik Banerjee",
                "affil": "Universitaet zu Koeln, Cologne, Germany.",
                "affil_id": 0
            },
            {
                "name": "Alexei Kritsuk",
                "affil": "University of California, SanDiego, USA.",
                "affil_id": 1
            },
            {
                "name": "Sebastien Galtier",
                "affil": "Universite Paris-Sud, Orsay, France.",
                "affil_id": 2
            }
        ],
        "affils": [
            "Universitaet zu Koeln, Cologne, Germany.",
            "University of California, SanDiego, USA.",
            "Universite Paris-Sud, Orsay, France."
        ],
        "content": "Self-gravitating isothermal supersonic turbulence is analyzed in the asymptotic limit of\\\\large Reynolds numbers. This regime is relevant for interstellar clouds and the problem\\\\of star formation. The analytical study based on the energy conservation leads to the\\\\derivation of an exact relation for homogeneous (non-isotropic) stationary turbulence. The\\\\universal law derived differs from the non-gravitating case by the presence of mixed second-\\\\order structure functions which become non negligible at scales larger than the Jeans\\\\length. A comparison is made with recent observations of some interstellar clouds and\\\\eventually a spectral analysis is made to provide statistical tools needed for a numerical\\\\study.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 94,
        "abstract_submitted": "2016-02-12 16:23:44",
        "abstract_status": "accepted:oral",
        "registration_number": 81,
        "registration_submitted": "2016-05-12 09:19:04",
        "registration_status": "payment_accepted",
        "gender_title": "",
        "first_name": "Guven",
        "last_name": "Ogus",
        "email": "guven.ogus@kuleuven.be",
        "degree": "M.Sc.",
        "org": "KU Leuven",
        "dept": "Engineering Technology",
        "country": "Belgium",
        "country_code": "BE",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Increase in mixing for low Reynolds number jet flows by swirl addition",
        "keywords": [
            "Turbulence",
            "Experimental techniques",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Guven Ogus",
                "affil": "KU Leuven, Department of Mechanical Engineering, Celestijnenlaan 300A, 3001, Leuven, Belgium",
                "affil_id": 0
            },
            {
                "name": "Martine Baelmans",
                "affil": "KU Leuven, Department of Mechanical Engineering, Celestijnenlaan 300A, 3001, Leuven, Belgium",
                "affil_id": 0
            },
            {
                "name": "Maarten Vanierschot",
                "affil": "KU Leuven, Department of Mechanical Engineering, Celestijnenlaan 300A, 3001, Leuven, Belgium",
                "affil_id": 0
            }
        ],
        "affils": [
            "KU Leuven, Department of Mechanical Engineering, Celestijnenlaan 300A, 3001, Leuven, Belgium"
        ],
        "content": "In laminar jet flow, mixing is often a problem. The absence of small scale structures makes it hard to foresee anything else but mixing by diffusion. However, as shown by this study, adding an amount of swirl significantly enhances mixing in an annular jet flow with Re=180. Applications that need turbulent-like flow features such as mixing, or centrifugal forces that usually are associated with higher Reynolds numbers, are being modeled in a laminar regime. The flow features arising from this flow state are simulated with a 3D grid using the direct numerical simulation approach with a proper grid independence study. Velocity fields and turbulence parameters are presented. The velocity field is also measured with Stereo Particle Image Velocimetry (SPIV) experiments. The results of the simulation and the experiments are compared and assessed in terms of first and second order statistics. ",
        "image": "images/094.png",
        "image_squared": "images/094-squared.png",
        "image_caption": "Velocity magnitude contours in cross section and Q criterion isosurface for small scale structuresvisualisation at Swirl number of 0.47 at Re = 180."
    },
    {
        "abstract_number": 95,
        "abstract_submitted": "2016-02-12 17:58:29",
        "abstract_status": "accepted:poster2",
        "registration_number": 51,
        "registration_submitted": "2016-04-28 10:04:03",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Agnieszka",
        "last_name": "Pawłowska",
        "email": "pawlowska@imc.pcz.czest.pl",
        "degree": "M.Sc.",
        "org": "Czestochowa University of Technology",
        "dept": "Faculty of Mechanical Engineering and Computer Science",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Experimental study of self-sustained oscillations in the axisymmetric free jet.",
        "keywords": [
            "Experimental techniques",
            "self-sustained oscillation",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Agnieszka Pawłowska",
                "affil": "Czestochowa University of Techology",
                "affil_id": 0
            },
            {
                "name": "Stanisław Drobniak",
                "affil": "Czestochowa University of Techology",
                "affil_id": 0
            },
            {
                "name": "Andrzej Bogusławski",
                "affil": "Czestochowa University of Techology",
                "affil_id": 0
            }
        ],
        "affils": [
            "Czestochowa University of Techology"
        ],
        "content": "The paper presents results of research devoted to the experimental verification of the self-sustained oscillations in the axisymmetric free jet. The new regime were found by Bogus\\l{}awski. Appearance of self-sustained oscillations requires the fulfilment two initial conditions -- the exit shear layer should be sufficiently thin and the level of turbulence intensity at the nozzle outlet should be sufficiently low. Presented results shows unusual free jet behaviour similar to the forced one. The CTA and LDA measurements were performed to verify the results of numerical modelling.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 97,
        "abstract_submitted": "2016-02-12 21:29:22",
        "abstract_status": "accepted:oral",
        "registration_number": 62,
        "registration_submitted": "2016-04-30 02:07:23",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Guilherme",
        "last_name": "Goedert",
        "email": "guilhermetgoedert@gmail.com",
        "degree": "M.Sc.",
        "org": "National Institute for Pure and Applied Mathematics - IMPA",
        "dept": "Fluid Dynamics Laboratory",
        "country": "Brazil",
        "country_code": "BR",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Renormalization Approach to Blowup in MHD Shell Model of Turbulence",
        "keywords": [
            "Turbulence",
            "Magnetohydrodynamics",
            "Dynamical System Approach"
        ],
        "authors": [
            {
                "name": "G. T. Goedert",
                "affil": "IMPA - National Institute for Pure and Applied Mathematics",
                "affil_id": 0
            },
            {
                "name": "A. A. Mailybaev",
                "affil": "IMPA - National Institute for Pure and Applied Mathematics",
                "affil_id": 0
            }
        ],
        "affils": [
            "IMPA - National Institute for Pure and Applied Mathematics"
        ],
        "content": "This work considers the question of existence and role of finite time singularities (blowup) in turbulence from a dynamical system standpoint. Since the rigorous analysis or simulation of fluid flow over the scales of interest is beyond our capabilities, we turn to a class of dynamical systems called shell models that have been shown to model turbulent flow qualitatively. We focus on one such model of magnetohydrodynamic turbulence. The analysis is based on a renormalization scheme which takes blowup time to infinity. This transformation associates the blowup to an attractor of the renormalized system, found from its Poincare map. This way, we describe the blowup structure and explain its universality. This approach shows that, for some parameters, the blowup has a chaotic structure. Moreover, we observe an interesting effect of coexisting blowup scenarios in a specific model, which are selected based on the initial conditions. Implications of these results for MHD are discussed.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 98,
        "abstract_submitted": "2016-02-13 08:25:46",
        "abstract_status": "accepted:oral",
        "registration_number": 25,
        "registration_submitted": "2016-04-11 08:28:44",
        "registration_status": "expired",
        "gender_title": "Mr.",
        "first_name": "Jakub",
        "last_name": "Poła",
        "email": "jakub.pola2@uwr.edu.pl",
        "degree": "M.Sc.",
        "org": "University of Wrocław, Vratis Ltd.",
        "dept": "Institute of Theoretical Physics",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Performance tests of PISO and SIMPLE Solver with k-Omega turbulence model completely implemented on GPU",
        "keywords": [
            "Computational methods",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "Jakub Poła",
                "affil": "University of Wrocław, Vratis Ltd.",
                "affil_id": 0
            },
            {
                "name": "Andrzej Kosior",
                "affil": "Vratis Ltd.",
                "affil_id": 1
            },
            {
                "name": "Michał Cieślak",
                "affil": "Vratis Ltd.",
                "affil_id": 1
            },
            {
                "name": "Lukasz Mirosław",
                "affil": "Vratis Ltd.",
                "affil_id": 1
            }
        ],
        "affils": [
            "University of Wrocław, Vratis Ltd.",
            "Vratis Ltd."
        ],
        "content": "Today CFD simulations are becoming more and more computationally demanding. In many areas of science and industry there is a need to guarantee short turnaround times and fast time-to-market. Graphics Processing Units provide completely new possibilities for significant cost savings because simulation time can be reduced on hardware that is often less expensive than server-class CPUs. We will present implicit single-phase flow solver with k-OmegaSST turublence model that is x2-x3 faster than the same solver running on 12-core CPU. In contrary to other solutions a SIMPLE and the PISO algorithms have been completely implemented on a graphics processing unit in CUDA and OpenCL. \n\nExtensive tests were performed to compare solution times for a group of CFD relevant cases on new Intel processors, new IBM Power8 processors and NVIDIA GPUs. They showed that the solver on a single GPU have comparable time-to-solution as OpenFOAM software on 40 threads on other mentioned hardware.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 99,
        "abstract_submitted": "2016-02-13 09:39:58",
        "abstract_status": "accepted:oral",
        "registration_number": 38,
        "registration_submitted": "2016-04-18 13:09:58",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Peyman",
        "last_name": "Davvalo Khongar",
        "email": "peyman.davvalo.khongar@edu.unige.it",
        "degree": "Ph.D.",
        "org": "Genoa Univeristy",
        "dept": "Department of civil, chemical and environmental engineering",
        "country": "Italy",
        "country_code": "IT",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Numerical simulations of oxygen-nutrient transport in the anterior chamber with and without a pIOL",
        "keywords": [
            "Biofluids",
            "Computational methods",
            "Intraocular lens"
        ],
        "authors": [
            {
                "name": "Peyman Davvalo Khongar",
                "affil": "Department of Civil, Chemical and Environmental Engineering, University of Genoa, Italy.",
                "affil_id": 0
            },
            {
                "name": "Xi Cheng",
                "affil": "Department of Mechanical Engineering, Stanford University, Stanford, California, US.",
                "affil_id": 1
            },
            {
                "name": "Jan O. Pralits",
                "affil": "Department of Civil, Chemical and Environmental Engineering, University of Genoa, Italy.",
                "affil_id": 0
            },
            {
                "name": "Rodolfo Repetto",
                "affil": "Department of Civil, Chemical and Environmental Engineering, University of Genoa, Italy.",
                "affil_id": 0
            },
            {
                "name": "Paolo Soleri",
                "affil": "Ophtec BV, Schweitzerlaan 15, 9728 NR, Groningen, The Netherlands.",
                "affil_id": 2
            },
            {
                "name": "Peter M. Pinsky",
                "affil": "Department of Mechanical Engineering, Stanford University, Stanford, California, US.",
                "affil_id": 1
            }
        ],
        "affils": [
            "Department of Civil, Chemical and Environmental Engineering, University of Genoa, Italy.",
            "Department of Mechanical Engineering, Stanford University, Stanford, California, US.",
            "Ophtec BV, Schweitzerlaan 15, 9728 NR, Groningen, The Netherlands."
        ],
        "content": "\\textbf{Purpose}: The reason for the possible corneal endothelial cell loss in the presenceof an iris-fixated intraocular lens (pIOL) is still poorly understood. We postulatethat it is due to changes in the oxygen-nutrient (ON) concentrations in the anterior chamber, associated with variations in the aqueous humor flow.\n\n\\textbf{Methods}: We performed numerical simulations to study the ON transport andcorneal metabolism in the anterior chamber for different mechanisms thatgenerate aqueous flow, which correspond to open and closed eyelids, with andwithout the pIOL.\n\n\\textbf{Results}: In the case of closed eyelids, and without the pIOL, the ON concentrationsalong the corneal endothelium can be significantly non-uniform. Further, in thepresence of a pIOL a decrease of nutrient availability in the central cornea alsooccurs, although the clinical implications of this finding must be verified. On theother hand when the eyelids are open the ON concentrations are more uniformlydistributed.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 100,
        "abstract_submitted": "2016-02-13 10:13:36",
        "abstract_status": "accepted:poster",
        "registration_number": 24,
        "registration_submitted": "2016-04-11 07:31:08",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Polina",
        "last_name": "Kakin",
        "email": "megachi@yandex.ru",
        "degree": "M.Sc.",
        "org": "St. Petersburg State University",
        "dept": "Physical Faculty, Department of High Energy and Elementary Particles Physics",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Scaling in erosion of landscapes: Renorm.group analysis of a model with infinetly many couplings.",
        "keywords": [
            "Turbulence"
        ],
        "authors": [
            {
                "name": "N.V. Antonov",
                "affil": "St. Petersburg State University",
                "affil_id": 0
            },
            {
                "name": "P.I. Kakin",
                "affil": "St. Petersburg State University",
                "affil_id": 0
            }
        ],
        "affils": [
            "St. Petersburg State University"
        ],
        "content": "Standard field theoretic renormalization group is applied to the model of landscape erosion introduced by R. Pastor-Satorras and D. H. Rothman {[}Phys. Rev. Lett., 80: 4349 (1998); J. Stat. Phys., 93: 477 (1998){]} yielding unexpected results: the model is multiplicatively renormalizable only if it involves infinitely many coupling constants. Despite this fact, the one-loop counterterm can be derived albeit in a closed form in terms of the certain function V (h) (that enters the original stochastic equation) and its derivatives. Its Taylor expansion gives rise to the full infinite set of the one-loop renormalization constants, $\\beta$-functions and anomalous dimensions. There is a two-dimensional surface of fixed points that is likely to contain infrared attractive region(s). If that is the case, the model exhibits scaling behaviour. The corresponding critical exponents are nonuniversal but satisfy certain universal exact relations.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 101,
        "abstract_submitted": "2016-02-13 13:24:44",
        "abstract_status": "accepted:oral",
        "registration_number": 23,
        "registration_submitted": "2016-04-10 21:39:03",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Nikolay",
        "last_name": "Gulitskiy",
        "email": "kollya12@mail.ru",
        "degree": "Ph.D.",
        "org": "Saint Petersburg State University",
        "dept": "Chair of High Energy Physics and Elementary Particles, Department of Theoretical Physics",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Anisotropic advection of a passive vector field by the turbulent velocity flow with finite correlation time",
        "keywords": [
            "Turbulence",
            "Magnetohydrodynamics",
            "Renormalization group"
        ],
        "authors": [
            {
                "name": "N. V. Antonov",
                "affil": "Saint Petersburg State University",
                "affil_id": 0
            },
            {
                "name": "N. M. Gulitskiy",
                "affil": "Saint Petersburg State University",
                "affil_id": 0
            }
        ],
        "affils": [
            "Saint Petersburg State University"
        ],
        "content": "The generalization of the problem, considered in {[}Phys. Rev. E 91, 013002 (2015){]}, to the finite correlation time of the environment (velocity) field is studied. Inertial-range asymptotic behavior of a vector (e.g., magnetic) field, passively advected by a strongly anisotropic turbulent flow, is investigated by means of the field theoretic renormalization group and the operator product expansion. The inertial-range behavior of the model is described by two regimes (the limits of vanishing or infinite correlation time) that correspond to non-trivial fixed points of the RG equations. In contrast to the well-known isotropic Kraichnan's model, where various correlation functions exhibit anomalous scaling behavior with infinite sets of anomalous exponents, here the dependence on the integral turbulence scale L has a logarithmic behavior. Due to the presence of anisotropy in the model all multiloop diagrams are equal to zero, thus, this result is exact.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 102,
        "abstract_submitted": "2016-02-13 21:18:02",
        "abstract_status": "accepted:poster",
        "registration_number": 93,
        "registration_submitted": "2016-05-17 19:55:33",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Michał",
        "last_name": "Korycki",
        "email": "michal.korycki@ncbj.gov.pl",
        "degree": "M.Sc.",
        "org": "National Centre for Nuclear Research",
        "dept": "Department of Complex Systems",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Atmospheric stability impact on flow structures around a tall complex-shaped building",
        "keywords": [
            "Geophysical flows",
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "M. Korycki",
                "affil": "National Centre for Nuclear Research",
                "affil_id": 0
            },
            {
                "name": "L. Łobocki",
                "affil": "Warsaw University of Technology",
                "affil_id": 1
            },
            {
                "name": "A. Wyszogrodzki",
                "affil": "Institute of Meteorology and Water Management",
                "affil_id": 2
            }
        ],
        "affils": [
            "National Centre for Nuclear Research",
            "Warsaw University of Technology",
            "Institute of Meteorology and Water Management"
        ],
        "content": "A broad range of research in urban flows was made in last few decades. Unfortunately a majority of those studies focused on adiabatically stratified flows. In some areas, like pollutant dispersion atmospheric stability is crucial.\n\nOur work was focused on examining the stratified flow around a tall building, taking into account different stabilities with idealized flow conditions. The LES model EULAG was used to simulate the flow around The Palace of Culture and Science as an example of complex shape structure. Simulations were performed with different stabilities and Froude numbers.\n\nResults show, that for Fr < 1 in addition to horseshoe and recirculation vortex know from literature, secondary, previously unreported vortices appear. These vortices seem to be strongly related the developing standing gravity waves. With decreasing Froude number, gravity waves become shorter and more of those new vortices appear. Similar flow structures were observed for idealized building shape.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 106,
        "abstract_submitted": "2016-02-14 09:14:40",
        "abstract_status": "accepted:poster",
        "registration_number": 57,
        "registration_submitted": "2016-04-28 20:00:25",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Dmitry",
        "last_name": "Pivovarov",
        "email": "pivovarov@imec.msu.ru",
        "degree": "Ph.D.",
        "org": "Lomonosov Moscow State University",
        "dept": "Research Institute of Mechanics",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Direct numerical simulation of turbulent bursts in inclined layer convection",
        "keywords": [
            "Turbulence",
            "Convection",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Pivovarov D.E.",
                "affil": "Lomonosov Moscow State University",
                "affil_id": 0
            }
        ],
        "affils": [
            "Lomonosov Moscow State University"
        ],
        "content": "In experiments with inclined layer thermal convection was detected the bursting state. It appears in a codimension-two point at certain angle in which convection rolls exhibit intermittent, localized, transverse bursts. In present investigation this phenomena is studied by direct numerical simulation. For this one finite-difference method is used. The system of thermogravity convection equation was integrated by 3d order Runge-Kutta method. Calculation was executed by parallel code at supercomputer Lomonosov of Moscow State University.This work was supported by Russian Foundation for Basic Research (15-01-06363, 16-31-00521).",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 107,
        "abstract_submitted": "2016-02-14 12:01:07",
        "abstract_status": "accepted:poster",
        "registration_number": 64,
        "registration_submitted": "2016-05-09 08:12:45",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Diego-Jose",
        "last_name": "Palomar-Trullen",
        "email": "diegojose.palomar.trullen@gmail.com",
        "degree": "M.Sc.",
        "org": "Valladolid University",
        "dept": "Energy Engineering and Fluid-Mechanics",
        "country": "Spain",
        "country_code": "ES",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Study of the influence of the turbulence model on an H-Darrieus vertical axis wind turbine optimization.",
        "keywords": [
            "Turbulence",
            "H-Darrieus VAWT",
            "Aerodynamics"
        ],
        "authors": [
            {
                "name": "Diego-Jose Palomar-Trullen",
                "affil": "Valladolid University, Energy Engineering and Fluid-Mechanics",
                "affil_id": 0
            },
            {
                "name": "Teresa Parra Santos",
                "affil": "Valladolid University, Energy Engineering and Fluid-Mechanics",
                "affil_id": 0
            },
            {
                "name": "Francisco Castro-Ruiz",
                "affil": "Valladolid University, Energy Engineering and Fluid-Mechanics",
                "affil_id": 0
            }
        ],
        "affils": [
            "Valladolid University, Energy Engineering and Fluid-Mechanics"
        ],
        "content": "The behavior of H-Darrieus vertical axis wind turbines (VAWT) is characterized by relative low Reynolds numbers and non-fully developed turbulent flows when working at low TSR. That implies that the performance of the turbulence model at Low-Re could have significant influence on the results. Swirl-dominated flows are not isotropic; therefore turbulence models tend to fail in the prediction. Realizable K-e and transitional SST K-$\\omega$ models are studied.\n\nTo determine the influence of the turbulence model, an optimization of the geometry of an H-Darrieus VAWT with three NACA7425 airfoils is performed in two different stages with both turbulence models: 1) simulation of different pitch angle configurations on a 2D single static profile in order to obtain a tendency about the best configuration without having into account the solidity of the rotor. 2) Simulation of the best configurations obtained, in a 2D numerical simulation of the entire rotor to study the influence of the wake.",
        "image": "images/107.png",
        "image_squared": "images/107-squared.png",
        "image_caption": "Comparison between the turbulent kinetic energy of the rotor and the three separated static airfoils. Influence of the turning of the complete rotor on the shape of the wake. Turbulence model: Transitional SST K-$\\omega$"
    },
    {
        "abstract_number": 109,
        "abstract_submitted": "2016-02-14 12:37:30",
        "abstract_status": "accepted:poster",
        "registration_number": 85,
        "registration_submitted": "2016-05-13 06:58:23",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Martin",
        "last_name": "Lellep",
        "email": "martin.lellep@physik.uni-marburg.de",
        "degree": "B.Sc.",
        "org": "Philipps University Marburg",
        "dept": "Physics",
        "country": "Germany",
        "country_code": "DE",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Marginally stable mean profiles in Taylor-Couette flow",
        "keywords": [
            "Turbulence",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "M Lellep",
                "affil": "Philipps University Marburg",
                "affil_id": 0
            },
            {
                "name": "H Brauckmann",
                "affil": "Philipps University Marburg",
                "affil_id": 0
            },
            {
                "name": "B Eckhardt",
                "affil": "Philipps University Marburg",
                "affil_id": 0
            }
        ],
        "affils": [
            "Philipps University Marburg"
        ],
        "content": "Full three dimensional simulations of turbulent Taylor-Couette flow give mean profiles that are linearly unstable. Using a least-square optimization constrained by the requirement of neutral stability gives nearby profiles that are marginally stable. Analysis of the profiles and their stability reveals the presence of two neutrally stable modes, associated with instabilities of the boundary layers at the inner and the outer cylinder. The calculations are for TC flow with radius ratio \\(\\eta =0.9\\), axial boundary conditions, Reynolds numbers \\(Re_{i}=2700\\) and \\(Re_{o}=1960\\).",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 110,
        "abstract_submitted": "2016-02-14 13:25:04",
        "abstract_status": "accepted:oral",
        "registration_number": 76,
        "registration_submitted": "2016-05-11 08:17:07",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Kamil",
        "last_name": "Kwiatkowski",
        "email": "kamil@igf.fuw.edu.pl",
        "degree": "Ph.D.",
        "org": "University of Warsaw",
        "dept": "",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Modeling of heat and mass transfer in reacting porous media",
        "keywords": [
            "Applied fluid dynamics",
            "Multiphase flows"
        ],
        "authors": [
            {
                "name": "Kamil Kwiatkowski",
                "affil": "Institute of Theoretical Physics, Faculty of Physics, University of Warsaw; Interdisciplinary Centre for Mathematical and Computational Modelling",
                "affil_id": 0
            },
            {
                "name": "Paweł Jan Żuk",
                "affil": "Institute of Theoretical Physics, Faculty of Physics, University of Warsaw",
                "affil_id": 1
            }
        ],
        "affils": [
            "Institute of Theoretical Physics, Faculty of Physics, University of Warsaw; Interdisciplinary Centre for Mathematical and Computational Modelling",
            "Institute of Theoretical Physics, Faculty of Physics, University of Warsaw"
        ],
        "content": "In thermal decomposition of wood a reacting porous material is evolving and its properties are changing in time.A complex evolution of porous structure of wood takes place while lignocellulose material is conversed into flammable gases, spectrum of liquids and charcoal. Evolution of porous medium in turn has an impact on the flow and heat transfer and possibly modifies whole process.\n\nIn this contribution we review the recent developments in modelling and simulations of reacting porous media in OpenFOAM and OpenFOAM-extended (foam) with an emphasis put on industrial processes of gasification. We discuss their advantages and stress their limitations, particularly to simulate biomass gasification.\n\nIn this work, we present a revised solver \\textit{biomassGasificationFoam} together with a complementary library \\textit{biomassGasificationMedia}. The solver is developed to simulate heat and mass flow inside reacting porous materials -- with constantly evolving structure, composition and parameters.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 111,
        "abstract_submitted": "2016-02-14 13:30:51",
        "abstract_status": "accepted:poster",
        "registration_number": 17,
        "registration_submitted": "2016-04-03 14:36:15",
        "registration_status": "expired",
        "gender_title": "Mr.",
        "first_name": "Belkacemi",
        "last_name": "Djelloul",
        "email": "belkacemidjelloul@gmail.com",
        "degree": "M.Sc.",
        "org": "University of Chlef UHBC",
        "dept": "faculty of sciences and engineering , departement of mechanical engineering , Laboratoire de Mécanique et énergétique.",
        "country": "Algeria",
        "country_code": "DZ",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Numerical Study of Blood Flow dynamic troughout idealized Abdominal Aortic Aneurysm",
        "keywords": [
            "Biofluids",
            "Computational methods",
            "Abdominal Aortic Aneurysm"
        ],
        "authors": [
            {
                "name": "Djelloul BELKACEMI",
                "affil": "LME laboratory , University of Chlef - Algeria",
                "affil_id": 0
            },
            {
                "name": "Boualem LARIBI",
                "affil": "FIMA laboratory , University of khemis Miliana - Algeria",
                "affil_id": 1
            },
            {
                "name": "Miloud TAHAR ABBES",
                "affil": "LME laboratory , University of Chlef",
                "affil_id": 2
            },
            {
                "name": "Elhacene MATENE",
                "affil": "University of Montreal - Canada",
                "affil_id": 3
            }
        ],
        "affils": [
            "LME laboratory , University of Chlef - Algeria",
            "FIMA laboratory , University of khemis Miliana - Algeria",
            "LME laboratory , University of Chlef",
            "University of Montreal - Canada"
        ],
        "content": "In this work, we have studied the relationship between blood hemodynamic and wall shear stresses WSS during the cardiac cycle and their spatiotemporal evolution for symmetric abdominal aortic aneurysm AAA which is a cardiovascular disease and constitute the 13th leading cause of death in the USA Patel et al (1995).The Navier-Stokes Equations was resolved through numerical simulations by finite- volume method under physiological boundary conditions Mills et al (1970). WSS, vorticity, flow dynamic and other parameters are investigated. Our results shows that thrombus formation is probable in a symmetric aneurysm in the anterior wall , high WSS regions (compared with WSS in healthy aorta HA ) in the anterior part of distal neck of aneurysm sac were detected and may lead to degradation of the vascular tissue and it can cause lesions and degradation of the wall and cause rupture and a series of phenomena at the cellular level that have been identified by in vivo and in vitro studies.",
        "image": "images/111.png",
        "image_squared": "images/111-squared.png",
        "image_caption": "a : Velocity vectors at different time of cardiac cycle in (cm/s)\n\nb : anterior view of WSS contour at systolic peak in (torr)"
    },
    {
        "abstract_number": 112,
        "abstract_submitted": "2016-02-14 14:57:42",
        "abstract_status": "accepted:poster",
        "registration_number": 50,
        "registration_submitted": "2016-04-27 19:18:50",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Martin",
        "last_name": "James",
        "email": "martin.nilambur@gmail.com",
        "degree": "M.Sc.",
        "org": "Indian Institute of Science",
        "dept": "Department of Physics",
        "country": "India",
        "country_code": "IN",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Collision statistics of inertial spherical particles in 2D turbulence",
        "keywords": [
            "Turbulence",
            "Collision Kernel"
        ],
        "authors": [
            {
                "name": "Martin James",
                "affil": "Indian Institute of Science",
                "affil_id": 0
            },
            {
                "name": "Samriddhi Sankar Ray",
                "affil": "International Centre for Theoretical Sciences - Tata Institute of Fundamental Research",
                "affil_id": 1
            }
        ],
        "affils": [
            "Indian Institute of Science",
            "International Centre for Theoretical Sciences - Tata Institute of Fundamental Research"
        ],
        "content": "Following M. Wilkinson (2015), we conduct numerical investigations on enhancemet of collision efficiency due to turbulence in two dimensions. We study the statistics of collisions between particles of different stokes numbers. We derive a scaling law for relative velocities of particles \\(\\Delta v\\) as a function of stokes numbers of particles. This is compared with the correlation dimension to understand the observed collision kernel. Some observations on the collision kernel during the transient phase and its implications on rain initiation are also made.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 114,
        "abstract_submitted": "2016-02-14 16:16:29",
        "abstract_status": "accepted:oral",
        "registration_number": 14,
        "registration_submitted": "2016-03-31 07:31:37",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Anna",
        "last_name": "Shebeleva",
        "email": "an_riv@mail.ru",
        "degree": "M.Sc.",
        "org": "Siberian Federal University",
        "dept": "department of Thermophisics",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Numerical modeling of two-phase flows in microchannels",
        "keywords": [
            "Multiphase flows",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "A.A. Shebeleva",
                "affil": "Siberian Federal University",
                "affil_id": 0
            },
            {
                "name": "A.V. Minakov",
                "affil": "Siberian Federal University",
                "affil_id": 0
            },
            {
                "name": "D.V. Guzey",
                "affil": "Siberian Federal University",
                "affil_id": 0
            }
        ],
        "affils": [
            "Siberian Federal University"
        ],
        "content": "Results of testing methodology for calculating two-phase flows based on the method of fluid in cells (VOF method), and procedure for CSF accounting of surface tension forces in microchannel are considered in work. Several contact angle models were considered.\n\nProblem is calculated using this methodology: on flow of water and oil emulsion, bubbles of nitrogen are formed in solution of glycerol flow in the gas-liquid micro channels T-type, as well as problem of simulating a water-kerosene in T-type microchannel. Comparison of numerical results with experimental data(Fig.1).\n\nTest results show that a special role in calculation of gas-liquid flows in microchannels plays a detailing grid. This is important in field of border wall layer between bubble and solid wall.It has been found that for good simulation of gas-liquid flow in microchannels to be used over 10 calculation nodes between channel wall and gas bubble to liquid film thickness.",
        "image": "images/114.png",
        "image_squared": "images/114-squared.png",
        "image_caption": "Results of calculation in microchannel are compared with experimental pictures:a) Q\\textsubscript{g}=14 mm\\textsuperscript{3}/s, Q\\textsubscript{l}=56 mm\\textsuperscript{3}/s, 25\\% aqueous solution of glycerin, t=5 ms;b) Q\\textsubscript{g}=14 mm\\textsuperscript{3}/s, Q\\textsubscript{l}=14 mm\\textsuperscript{3}/s, 25\\% aqueous solution of glycerin."
    },
    {
        "abstract_number": 115,
        "abstract_submitted": "2016-02-14 16:48:11",
        "abstract_status": "accepted:poster",
        "registration_number": 47,
        "registration_submitted": "2016-04-24 14:30:19",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Jakub",
        "last_name": "Broniszewski",
        "email": "jbroniszewski@meil.pw.edu.pl",
        "degree": "M.Sc.",
        "org": "Warsaw University of Technology",
        "dept": "Faculty of Power and Aeronautical Engineering",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Unsteady aerodynamics effects on rigid body dynamics – co-simulation approach",
        "keywords": [
            "Aerodynamics",
            "Cosimulation",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Jakub Broniszewski",
                "affil": "Warsaw University of Technology, Faculty of Power and Aeronautical Engineering, Warsaw, Poland",
                "affil_id": 0
            }
        ],
        "affils": [
            "Warsaw University of Technology, Faculty of Power and Aeronautical Engineering, Warsaw, Poland"
        ],
        "content": "During these days capability of CFD simulation are really impressive. However, single physics approach is not sufficient in some situation. Fluid-structure interaction (in some situation called co-simulation) significantly extend cases which can be analyzed. In this work co-simulation approach to simulate rigid body dynamics in presence of unsteady aerodynamics forces is presented. Software ecosystem is constructed from the following combination of tools: Fluent as a CFD solver, MSC.Adams as a rigid body dynamics solver and Matlab/Simulink as an interface and controller. Having system like this one to simulate FSI problems, it was possible to add elements of active control, utilizing unsteady generation of aerodynamic forces. Obtained results show importance of aerodynamics effects on rigid body behavior.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 116,
        "abstract_submitted": "2016-02-14 17:45:49",
        "abstract_status": "accepted:oral",
        "registration_number": 52,
        "registration_submitted": "2016-04-28 10:23:15",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Rajesh",
        "last_name": "Ranjan",
        "email": "rajeshranjanarya@gmail.com",
        "degree": "Ph.D.",
        "org": "Jawaharlal Nehru Centre for Advanced Scientific Research",
        "dept": "Engineering Mechanics Unit",
        "country": "India",
        "country_code": "IN",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Quasi-laminar theory for relaminarization in a highly accelerated high-Re turbulent boundary layer",
        "keywords": [
            "Turbulence",
            "Applied fluid dynamics",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Rajesh Ranjan",
                "affil": "Jawaharlal Nehru Centre for Advanced Scientific Research",
                "affil_id": 0
            },
            {
                "name": "S M Deshpande",
                "affil": "Jawaharlal Nehru Centre for Advanced Scientific Research",
                "affil_id": 0
            },
            {
                "name": "Roddam Narasimha",
                "affil": "Jawaharlal Nehru Centre for Advanced Scientific Research",
                "affil_id": 0
            }
        ],
        "affils": [
            "Jawaharlal Nehru Centre for Advanced Scientific Research"
        ],
        "content": "The phenomenon of relaminarization is observed in many flow situations, including an initially turbulent boundary layer subjected to strong favourable pressure gradient (FPG). Available turbulence models have hitherto been unsuccessful in correctly predicting the boundary layer parameters for such flows. Narasimha \\& Sreenivasan (1973) proposed quasi-laminar theory (QLT) based on a two-layer model to explain the later stages of relaminarization.\n\nRecent work by Bourassa \\& Thomas (2009) reports a detailed study of relaminarizing flow, where all the flow quantities of interest are measured at relatively high Reynolds number (\\(Re_{\\theta }\\) = 4600 upstream of FPG) and high FPG (acceleration parameter \\(K\\)\\textit{=}4.5 \\(\\times 10^{-6}\\)).In the present work, the equations of QLT for both the layers were solved exactly for the this flow. In the later stages of relaminarization, QLT provides a much superior match with the experimental results than the results with a turbulent boundary layer code.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 117,
        "abstract_submitted": "2016-02-14 17:47:50",
        "abstract_status": "accepted:oral",
        "registration_number": 65,
        "registration_submitted": "2016-05-09 12:36:22",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Vera",
        "last_name": "Bense",
        "email": "v.bense@uni-mainz.de",
        "degree": "M.Sc.",
        "org": "Johannes Gutenberg University Mainz",
        "dept": "Institute for Atmospheric Physics",
        "country": "Germany",
        "country_code": "DE",
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Gravity Waves Crossing the Tropopause - Idealized Model Simulations",
        "keywords": [
            "Geophysical flows",
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "Vera Bense",
                "affil": "Institute for Atmospheric Physics , Johannes Gutenberg University Mainz",
                "affil_id": 0
            },
            {
                "name": "Peter Spichtinger",
                "affil": "Institute for Atmospheric Physics , Johannes Gutenberg University Mainz",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute for Atmospheric Physics , Johannes Gutenberg University Mainz"
        ],
        "content": "Gravity waves, excited in general by vertical displacement of air (e.g. orographic, frontal or convective lifting), can propagate in a stably stratified atmosphere and interact with the ambient flow. When travelling through the tropopause region, characterised by strong gradients in various atmospheric quantities, such as stability, wind shear and trace gases, the waves' properties often change drastically.\\\\Within this work, the EULAG model is used to provide an idealized set-up for sensitivity studies. Tropospheric and stratospheric wave spectra extracted for flows under varying tropopause sharpness are analysed, respectively. Possible effects of changing wind shear on reflection and breaking of the wave are discussed as well.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 120,
        "abstract_submitted": "2016-02-14 21:06:05",
        "abstract_status": "accepted:poster2",
        "registration_number": 86,
        "registration_submitted": "2016-05-13 10:57:56",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Arek",
        "last_name": "Grucelski",
        "email": "agrucelski@imp.gda.pl",
        "degree": "Ph.D.",
        "org": "Institute of Fluid-Flow Machinery",
        "dept": "",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Meso-scale modelling approach for devolatilisation process",
        "keywords": [
            "Applied fluid dynamics",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Arek Grucelski",
                "affil": "Institute of Fluid-Flow Machinery",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute of Fluid-Flow Machinery"
        ],
        "content": "A number of industrial processes involve multiphysics phenomena occurring in a complex geometry. One example, characterized by an intrinsic complexity, is a devolatilisation process of fuel particles (like coal or biomass). For a detailed description of the process, investigation at the micro level (of a single grain) is desirable. On the other hand, results from averaged modelling of the process are most common in the literature. Despite the rapid development of computational power and numerical tools, utilization of the results from micro scale at the averaged level is out of reach.\\\\Recent developments in the meso-scale modelling approach for a devolatilisation process provide the opportunity to use in the results from detailed analysis in the averaged modelling. In the presentation, author will highlight the issues associated with the meso-scale modelling of the devolatilisation process of fuel particles (flow thermomechanics through a packed bed of coal/biomass grains).",
        "image": "images/120.png",
        "image_squared": "images/120-squared.png",
        "image_caption": "Velocity field of meso scale modelling of heat transfer and fluid flow in the reactive granular media."
    },
    {
        "abstract_number": 122,
        "abstract_submitted": "2016-02-14 21:42:28",
        "abstract_status": "accepted:poster",
        "registration_number": 35,
        "registration_submitted": "2016-04-16 06:13:51",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Jakub",
        "last_name": "Kalke",
        "email": "jakub.kalke@gmail.com",
        "degree": "M.Sc.",
        "org": "Warsaw University of Technology",
        "dept": "Institute of Heat Engineering",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Impact of Ports Geometry on Scavenging Process in Opposed-Piston Engines",
        "keywords": [
            "Applied fluid dynamics",
            "Wall-bounded flows",
            "Internal Combustion Engines"
        ],
        "authors": [
            {
                "name": "Jakub Kalke",
                "affil": "Warsaw University of Technology",
                "affil_id": 0
            },
            {
                "name": "Mateusz Szczeciński",
                "affil": "Warsaw University of Technology",
                "affil_id": 0
            },
            {
                "name": "Paweł Mazuro",
                "affil": "Warsaw University of Technology",
                "affil_id": 0
            }
        ],
        "affils": [
            "Warsaw University of Technology"
        ],
        "content": "Modern opposed piston engines are making a comeback to the research centers around the world due to their inherent higher thermodynamic efficiency. Contemporary simulation software and technological advancement allow to eliminate the major drawbacks like emissions and oil consumption even in design phase. Unfortunately, the 2-stroke operation mode is very sensitive to intake and exhaust ports geometry. The paper presents the impact of various geometrical modifications of ports shape and distribution to the gas exchange results. Calculations utilize the potential of combining different engineering tools by scripting and additional programming to significantly speed-up the concept phase of various geometries. To simplify calculations the combustion is reduced to 0-D model, also heat transfer is not being taken into account.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 123,
        "abstract_submitted": "2016-02-14 22:35:29",
        "abstract_status": "accepted:oral",
        "registration_number": 53,
        "registration_submitted": "2016-04-28 11:53:00",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Bartosz",
        "last_name": "Olszański",
        "email": "bolszanski@meil.pw.edu.pl",
        "degree": "M.Sc.",
        "org": "Warsaw University of Technology",
        "dept": "Institute of Aeronautics and Applied Mechanics, Department of Aerodynamics",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Classical and supercritical airfoil in high air humidity flow conditions",
        "keywords": [
            "Aerodynamics",
            "Experimental techniques"
        ],
        "authors": [
            {
                "name": "Zbigniew Nosal",
                "affil": "Institute of Aeronautics and Applied Mechanics, Department of Aerodynamics",
                "affil_id": 0
            },
            {
                "name": "Bartosz Olszański",
                "affil": "Institute of Aeronautics and Applied Mechanics, Department of Aerodynamics",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute of Aeronautics and Applied Mechanics, Department of Aerodynamics"
        ],
        "content": "The paper shows the experimental study results for NACA0014 airfoil and SC(2)-0714 supercritical airfoil in varying air humidity conditions.Transonic flow over a classical airfoil is characterized by the occurrence of supersonic flow region enclosed by a shock wave. Under high air humidity conditions the basic transonic flow phenomena is accompanied by a vapour condensation in the low pressure regions directly connected with the heat exchange and multiphase flow occurrence. SC(2)-0714 may be considered as a model airfoil in its class because of wide range of available experimental data. However, it was examined mainly in low temperature wind tunnels, which operating range is restricted solely to dry air because of construction limitations. The results obtained in a IAAM indraft transonic wind tunnel expand the existing knowledge in the field of supercritical airfoil properties. NACA0014 served as a benchmark for identification \\& analysis of phenomena occurring in high humidity flows.",
        "image": "images/123.png",
        "image_squared": "images/123-squared.png",
        "image_caption": "A series of Schlieren photographs showing the flow around the SC(2)-0714 airfoil for three different air humidity values, angle of attack = 3, Ma 0.730."
    },
    {
        "abstract_number": 124,
        "abstract_submitted": "2016-02-15 05:16:00",
        "abstract_status": "accepted:oral",
        "registration_number": 13,
        "registration_submitted": "2016-03-31 07:27:22",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Aleksandr",
        "last_name": "Shebelev",
        "email": "aleksandr-shebelev@mail.ru",
        "degree": "M.Sc.",
        "org": "Siberian Federal University",
        "dept": "Department of Thermophisics",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "A simple criterion for assessing mesh resolution of RANS methods",
        "keywords": [
            "Computational methods",
            "Turbulence"
        ],
        "authors": [
            {
                "name": "A.A. Gavrilov",
                "affil": "Institute of Thermophysics SB RAS",
                "affil_id": 0
            },
            {
                "name": "A.V. Shebelev",
                "affil": "Siberian Federal University, department of Thermophisics",
                "affil_id": 1
            }
        ],
        "affils": [
            "Institute of Thermophysics SB RAS",
            "Siberian Federal University, department of Thermophisics"
        ],
        "content": "We propose simple criterion for assessing of mesh resolution for grid-independent RANS solutions of turbulent flows. The criterion has been deduced based on a posteriori assessment of local field interpolation error for turbulent kinetic energy. \n\nThe proposed criterion was tested on the several cases. In this paper, the proposed criterion was applied to unsteady periodicdetached turbulent flow over semicircle profile at zero angle of attack at Reynolds number Re=50000 (Fig. 1). Two eddyviscosityRANS models k-$\\omega$ SST with curvature correction and model with elliptical relaxation k-e-$\\zeta$-f were used for modeling.\n\n Numerical study shown that mesh resolution in wake does not affect on flow near body, in particularly, on integral forces acting on streamlined body. It was shown that introduced criterion allows properly to assess mesh resolution requiredfor grid-independent solution away from the wall.",
        "image": "images/124.png",
        "image_squared": "images/124-squared.png",
        "image_caption": "The result of computational modeling. Vortex path after semicircular bodyat Reynolds number Re=50000."
    },
    {
        "abstract_number": 127,
        "abstract_submitted": "2016-02-15 09:20:59",
        "abstract_status": "accepted:poster",
        "registration_number": 67,
        "registration_submitted": "2016-05-09 13:19:27",
        "registration_status": "payment_accepted",
        "gender_title": "",
        "first_name": "Matthias",
        "last_name": "Voigt",
        "email": "voigtm@uni-mainz.de",
        "degree": "M.Sc.",
        "org": "Johannes Gutenberg University",
        "dept": "Institute for Atmospheric Physics",
        "country": "Germany",
        "country_code": "DE",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Shear generated inhomogeneities in cirrus clouds",
        "keywords": [
            "Geophysical flows",
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "Matthias Voigt",
                "affil": "Johannes Gutenberg University, Mainz",
                "affil_id": 0
            },
            {
                "name": "Peter Spichtinger",
                "affil": "Johannes Gutenberg University, Mainz",
                "affil_id": 0
            }
        ],
        "affils": [
            "Johannes Gutenberg University, Mainz"
        ],
        "content": "The microphysical properties of cirrus clouds may vary on a short spatial scale and these inhomogeneities determine the radiative properties of the cloud.\n\nIn this work the impact of shear generated waves on a stably stratified and ice super saturated layer is studied. For this purpose the fluid solver EULAG is used in combination with a two moment bulk microphysics scheme for cold clouds. The dependence of the microphysical properties as ice crystal number and mass concentration on the dynamical properties as wind velocity, wind shear and the depth of the shear layer is determined with idealized 2D simulations.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 128,
        "abstract_submitted": "2016-02-15 10:08:31",
        "abstract_status": "accepted:poster",
        "registration_number": 66,
        "registration_submitted": "2016-05-09 12:43:36",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Patrik",
        "last_name": "Marschalik",
        "email": "patrik.marschalik@uni-mainz.de",
        "degree": "Ph.D.",
        "org": "Johannes Gutenberg University Mainz",
        "dept": "Institute for Atmospheric Physics (IPA)",
        "country": "Germany",
        "country_code": "DE",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Asymptotic analysis of ice clouds in a large-scale regime",
        "keywords": [
            "Geophysical flows"
        ],
        "authors": [
            {
                "name": "Patrik Marschalik",
                "affil": "Institute for Atmospheric Physics (IPA), Johannes Gutenberg University Mainz",
                "affil_id": 0
            },
            {
                "name": "Peter Spichtinger",
                "affil": "Institute for Atmospheric Physics (IPA), Johannes Gutenberg University Mainz",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute for Atmospheric Physics (IPA), Johannes Gutenberg University Mainz"
        ],
        "content": "A simple ice cloud model is coupled with the Navier-Stokes equations.  The cloud model includes an analytically simple description of the rate for homogeneous ice nucleation. The methods of multiscale asymptotic analysis are used to identify dominant processes in a large-scale regime coupled with small disturbances. This is applied to an idealized scenario of subvisible cirrus with very slow uplift. These are ice clouds that very frequently occur in the tropopause region with an optical depth lower than 0.03 and a very low ice crystal number concentration. The analysis is compared with a dynamical system approach considered in the article under discussion \\textit{Subvisible cirrus clouds - a}\\textit{dynamical system approach}, (Spreitzer et al., NPGD 2016).",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 129,
        "abstract_submitted": "2016-04-30 13:08:21",
        "abstract_status": "accepted:poster3",
        "registration_number": 70,
        "registration_submitted": "2016-05-10 13:22:41",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Zhang",
        "last_name": "Lu",
        "email": "luzhangphy@gmail.com",
        "degree": "M.Sc.",
        "org": "the Chinese University of Hong Kong",
        "dept": "Department of Physics",
        "country": "Hong Kong",
        "country_code": "HK",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "An Experimental Study of the Dynamics of Water Droplets in Thermal Turbulence",
        "keywords": [
            "Turbulence",
            "Multiphase flows",
            "Aerodynamics"
        ],
        "authors": [
            {
                "name": "Lu ZHANG",
                "affil": "the Chinese University of Hong Kong",
                "affil_id": 0
            },
            {
                "name": "Keqing XIA",
                "affil": "the Chinese University of Hong Kong",
                "affil_id": 0
            }
        ],
        "affils": [
            "the Chinese University of Hong Kong"
        ],
        "content": "Many important cloud phenomena are closely related to the interaction between cloud micro physics and the ubiquitous turbulence in atmospheric clouds. However, due to the large spatial scale range and enormous Reynolds number involved, existing field experiments can hardly resolve the small scale (e.g. komogorov length scale) properties in cloud turbulence. In this experiment, we use a modified Rayleigh Bernard convection cell to study the dynamics of water droplets in the thermal driven turbulent background. The water droplets are formed by isobaric mixing of cold and hot moist air at the top and bottom plate respectively. The system involves into a steady state and enables us to do particle tracking velocimetry (PTV) and particle imaging velocimetry (PIV) analysis. We also use a fast camera in combination with a stereo microscope to visualize individual water droplets. The size distribution of water droplets is found in agreement with that found in a cumulus clouds.",
        "image": "images/129.jpg",
        "image_squared": "images/129-squared.jpg",
        "image_caption": "Snapshots of water droplets in a thermal driven turbulent background.A thin layer of water (3 mm thick) is placed at the center of the bottom hot plate."
    },
    {
        "abstract_number": 130,
        "abstract_submitted": "2016-04-30 15:30:50",
        "abstract_status": "accepted:poster3",
        "registration_number": 74,
        "registration_submitted": "2016-05-11 04:46:37",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Yunbing",
        "last_name": "Hu",
        "email": "huyunbing1991@gmail.com",
        "degree": "M.Sc.",
        "org": "the Chinese University of Hong Kong",
        "dept": "Department of Physics",
        "country": "China",
        "country_code": "CN",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "An experimental study of horizontal convection",
        "keywords": [
            "Convection",
            "Geophysical flows"
        ],
        "authors": [
            {
                "name": "Yun-Bing Hu",
                "affil": "Department of Physics, the Chinese University of Hong Kong",
                "affil_id": 0
            },
            {
                "name": "Shi-Di Huang",
                "affil": "Department of Physics, the Chinese University of Hong Kong",
                "affil_id": 0
            },
            {
                "name": "Fei Wang",
                "affil": "Department of Physics, the Chinese University of Hong Kong",
                "affil_id": 0
            },
            {
                "name": "Ke-Qing Xia",
                "affil": "Department of Physics, the Chinese University of Hong Kong",
                "affil_id": 0
            }
        ],
        "affils": [
            "Department of Physics, the Chinese University of Hong Kong"
        ],
        "content": "Horizontal convection is a simplified model to study the ocean circulations, in which the cooling and heating sources are located at the same horizontal level. Our experiments are mainly conducted in a large rectangular tank with width 20cm, height 40cm and changeable length. The length varies from 50cm to 200cm in order to cover a wide Rayleigh number (Ra) range from 1x10\\textsuperscript{9}to 1x10\\textsuperscript{12}. The non-dimensional heat flux Nusselt number (Nu) scales with Ra with the exponent equal to 0.3, which differs from the known 0.2 scaling. The temperature profile measurements along the vertical direction at different horizontal locations show that there is a strongly stratified thermal boundary layer (BL) and a weakly stratified interior. The BL thickness follows a -0.3 power law. At last, we studied the bottom heating effects in some other small tanks. The results show that the effects of bottom heating flux on Nu is negligible, although the flow dynamics in the interior change significantly.",
        "image": "images/130.jpg",
        "image_squared": "images/130-squared.jpg",
        "image_caption": "(a) thecompensated Nu-Ra scaling, i.e. Nu/Ra\\textsuperscript{0.3} v.s. Ra; (b)thecompensatedthermal BL thickness, different symbols represent different horizontal locations; (c) the measered Nu withdifferent amount bottom heating flux; (d) temperature profiles"
    },
    {
        "abstract_number": 131,
        "abstract_submitted": "2016-04-30 18:25:19",
        "abstract_status": "accepted:poster3",
        "registration_number": 73,
        "registration_submitted": "2016-05-10 16:35:23",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Agnieszka",
        "last_name": "Niedzwiedzka",
        "email": "niedzwiedzka.agnieszka@gmail.com",
        "degree": "M.Sc.",
        "org": "University of Warmia and Mazury in Olsztyn",
        "dept": "Department of Mechanics and Baisics of Machine Construction",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Cavitation models in ANSYS Fluent - verification",
        "keywords": [
            "Multiphase flows",
            "Cavitation"
        ],
        "authors": [
            {
                "name": "Niedźwiedzka Agnieszka",
                "affil": "Warmia and Mazury University in Olsztyn",
                "affil_id": 0
            },
            {
                "name": "Sobieski Wojciech",
                "affil": "Warmia and Mazury University in Olsztyn",
                "affil_id": 0
            }
        ],
        "affils": [
            "Warmia and Mazury University in Olsztyn"
        ],
        "content": "In case of the cavitation phenomenon, Fluent software offers three homogeneous models which are available from the interface: Schnerr and Sauer model, Zwart model and Singhal model. Fluent gives users also the possibility to have a control over the phenomenon through UDFs (Used Defined Functions) which can be implemented using macro Define Cavitation Rate. Making the own versions of homogeneous models should be preceded by verification of the prepared tools. The simplest form of verification is comparison of the results obtained using the same models from the interface and UDFs. The model used in comparisons should be universally available for the Fluent users, like the model from the well-known cavitation tutorial. The poster presents the comparison of the results obtained using cavitation models from the interface and UDFs. The aim of the poster is evaluation of the correctness of the UDFs form. The motivation is intension to use the UDFs to validation of experimental investigations.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 133,
        "abstract_submitted": "2016-05-01 00:20:30",
        "abstract_status": "accepted:oral",
        "registration_number": 91,
        "registration_submitted": "2016-05-17 09:59:19",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Federico",
        "last_name": "Faternale",
        "email": "federico.fraternale@polito.it",
        "degree": "M.Sc.",
        "org": "Politecnico di Torino",
        "dept": "Department of Mechanical and Aerospace Engineering",
        "country": "Italy",
        "country_code": "IT",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Magnetic field spectral analysis in the Heliosheath from Voyagers data",
        "keywords": [
            "Magnetohydrodynamics"
        ],
        "authors": [
            {
                "name": "Federico Fraternale",
                "affil": "Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Torino, Italy",
                "affil_id": 0
            },
            {
                "name": "Luca Gallana",
                "affil": "Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Torino, Italy",
                "affil_id": 0
            },
            {
                "name": "Michele Iovieno",
                "affil": "Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Torino, Italy",
                "affil_id": 0
            },
            {
                "name": "Merav Opher",
                "affil": "Astronomy Department, Boston University,  Boston (MA), USA",
                "affil_id": 1
            },
            {
                "name": "John D. Richardson",
                "affil": "Kavli Institute for Astrophysics and Space Research, MIT, Cambridge (MA), USA",
                "affil_id": 2
            },
            {
                "name": "Daniela Tordella",
                "affil": "Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Torino, Italy",
                "affil_id": 0
            }
        ],
        "affils": [
            "Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Torino, Italy",
            "Astronomy Department, Boston University,  Boston (MA), USA",
            "Kavli Institute for Astrophysics and Space Research, MIT, Cambridge (MA), USA"
        ],
        "content": "In 2004 and 2007 the two Voyagers crossed the termination shock entering the heliosheath, where the solar wind is slowed down and interacts with the interstellar medium. Many observations are not fully understood, one of these is the difference in the profiles of energetic ions and electrons fluxes recorded by V1 and V2. The high fluctuations of particles fluxes at V2 led researchers suppose the existence of two regions with distinct magnetic field features inside the HS: the sectored heliosheath, at low latitudes, and the unipolar heliosheath. These regions should have different transport properties, and the presence of turbulence may play a key role. In this work we analyze the spectral behaviour of magnetic field from V1 and V2 data in both the SHS and the UHS after 2009. The power spectra at V1 show a higher anisotropy level and slope than V2 in the intermediate range. A spectral bumb at f = 5e4 Hz is observed before 2010.5 and awaits a consistent physical interpretation.",
        "image": "images/133.jpg",
        "image_squared": "images/133-squared.jpg",
        "image_caption": "Qualitative representation of the heliosphere and the trajectory of the Voyager 1 and 2 spacecrafts. "
    },
    {
        "abstract_number": 134,
        "abstract_submitted": "2016-05-01 03:04:03",
        "abstract_status": "accepted:oral",
        "registration_number": 68,
        "registration_submitted": "2016-05-10 08:01:51",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Anna",
        "last_name": "Evgrafova",
        "email": "eav@icmm.ru",
        "degree": "M.Sc.",
        "org": "Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science",
        "dept": "",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Laboratory study of a steady-state convective cyclonic vortex",
        "keywords": [
            "Geophysical flows",
            "Convection",
            "Experimental techniques"
        ],
        "authors": [
            {
                "name": "Andrey Sukhanovskii",
                "affil": "Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science",
                "affil_id": 0
            },
            {
                "name": "Elena Popova",
                "affil": "Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science",
                "affil_id": 0
            },
            {
                "name": "Anna Evgrafova",
                "affil": "Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science"
        ],
        "content": "Experimental study of the steady-state cyclonic vortex from isolated heat source in a rotating fluid layer is described. The structure of laboratory cyclonic vortex is similar to the typical structure of tropical cyclones from observational data and numerical modelling. Different constraints of the steady-state hurricane-like vortex were studied. The three main dimensional parameters that define the vortex structure-heating flux, rotation rate and viscosity were varied independently.It was shown that viscosity is one of the main parameters that define vortex structure. Increasing of kinematic viscosity value may lead to the total suppression of cyclonic motion.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 135,
        "abstract_submitted": "2016-05-02 21:03:06",
        "abstract_status": "accepted:poster3",
        "registration_number": 82,
        "registration_submitted": "2016-05-12 11:59:03",
        "registration_status": "payment_accepted",
        "gender_title": "Ms.",
        "first_name": "Fatima",
        "last_name": "Moumen",
        "email": "fmoumen@yahoo.fr",
        "degree": "M.Sc.",
        "org": "University of Oran1 Ahmed Benbella",
        "dept": "Department of Physics, Faculty of Exact and Applied Sciences,",
        "country": "Algeria",
        "country_code": "DZ",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Computational Simulation of blood flow in the left sub-clavian artery in presence of sténosis",
        "keywords": [
            "Applied fluid dynamics",
            "Biofluids",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Fatima MOUMEN",
                "affil": "Dpt of physics, Faculty of Exact and Applied Sciences, University  of Oran 1-Ahemed benbella, Oran, Algeria",
                "affil_id": 0
            },
            {
                "name": "Abed-el-farid DJEMAI",
                "affil": "Department of Physics Engineering, Faculty of Physics, University of Sciences and Technologies USTO-Mohamed Boudiaf, Oran, Algeria.",
                "affil_id": 1
            }
        ],
        "affils": [
            "Dpt of physics, Faculty of Exact and Applied Sciences, University  of Oran 1-Ahemed benbella, Oran, Algeria",
            "Department of Physics Engineering, Faculty of Physics, University of Sciences and Technologies USTO-Mohamed Boudiaf, Oran, Algeria."
        ],
        "content": "The aim of our work is to investigate, by using ANSYS-ICEM-CFX code, the hemodynamic parameters of blood flow through aortic arch and his main branches in the normal case and in the case of st\\'{e}nosis, especially the st\\'{e}nosis in the subclavian artery. In our computational simulation, we have proposed a stenosis geometrical model, and the blood is considered as non-newtonian fluid. Our results are in the form of velocity profile, pressure and wall shear stess contour,and are compared to those obtained by using imaging data concerning this pathology.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 136,
        "abstract_submitted": "2016-05-03 07:44:35",
        "abstract_status": "accepted:poster3",
        "registration_number": 94,
        "registration_submitted": "2016-05-18 04:10:01",
        "registration_status": "expired",
        "gender_title": "",
        "first_name": "Vladislava",
        "last_name": "Churuksaeva",
        "email": "chu.vv@mail.ru",
        "degree": "M.Sc.",
        "org": "National Research Tomsk State University",
        "dept": "Department of calculus mathematics and computer modeling",
        "country": "Russia",
        "country_code": "RU",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Depth averaged modeling of turbulent river flow",
        "keywords": [
            "Geophysical flows",
            "Turbulence",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Vladislava V. Churuksaeva",
                "affil": "National Research Tomsk State University, Tomsk, Russia",
                "affil_id": 0
            }
        ],
        "affils": [
            "National Research Tomsk State University, Tomsk, Russia"
        ],
        "content": "The results of numerical investigations of the problems connected with transport of pollutants and local flooding on plain rivers are presented.The river flow turbulence has a great influence on bed formation and on transport of pollutants by a stream. The model proposed is based on depth-integrated RANS equations. Turbulent characteristics of the flow were computed from the depth averaged high-Reynolds modification of the k-epsilon turbulence model. The model also includes wind stresses on water surface, bottom share stresses depending on roughness, and terms to account for the Coriolis force that are significant for the flow in a river.A finite volume method on the staggered structured grid was used to discretize the equations. Solution of the discrete system was obtained with a SIMPLE iterative algorithm. The results of the calculations for test cases for the problems described show agreement with general concepts and represent flow patterns observed in field studies of the river.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 137,
        "abstract_submitted": "2016-05-04 08:56:42",
        "abstract_status": "accepted:poster3",
        "registration_number": 69,
        "registration_submitted": "2016-05-10 08:11:39",
        "registration_status": "payment_accepted",
        "gender_title": "",
        "first_name": "Wit",
        "last_name": "Stryczniewicz",
        "email": "wit.stryczniewicz@ilot.edu.pl",
        "degree": "Ph.D.",
        "org": "Institute of Aviation",
        "dept": "Aerodynamic Department",
        "country": "Poland",
        "country_code": "PL",
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "PIV Measurements of Shock Induced Flow Separation over Laminar Airfoil at Transonic Speeds",
        "keywords": [
            "Aerodynamics",
            "Experimental techniques",
            "Wall-bounded flows"
        ],
        "authors": [
            {
                "name": "Wit Stryczniewicz",
                "affil": "Institute of Aviation, Aerodynamics Department,  Krakowska 110/114, 02-256 Warsaw, Poland",
                "affil_id": 0
            },
            {
                "name": "Robert Placek",
                "affil": "Institute of Aviation, Aerodynamics Department,  Krakowska 110/114, 02-256 Warsaw, Poland",
                "affil_id": 0
            },
            {
                "name": "Paweł Ruchała",
                "affil": "Institute of Aviation, Aerodynamics Department,  Krakowska 110/114, 02-256 Warsaw, Poland",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute of Aviation, Aerodynamics Department,  Krakowska 110/114, 02-256 Warsaw, Poland"
        ],
        "content": "In a course of presented studies the Particle Image Velocimetry (PIV) method was used for instantaneous velocity measurements of flow field in the test section of N-3 Institute of Aviation transonic wind tunnel. The object of the research was an laminar airfoil inclined at various angles of attack. The freestream Mach number was 0.7. The results of the PIV measurements was analysed in order to investigate the development of flow separation for low, medium and high angle of attack. Good agreement with theoretical models reported in the literature was observed. Two types of velocity profiles in the wake was distinguished. The results of the presented research can be used for better understanding of the mechanism of the flow separation process in transonic flow over airfoils and shock induced flow separation.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 138,
        "abstract_submitted": "2016-05-04 10:50:02",
        "abstract_status": "accepted:poster3",
        "registration_number": 71,
        "registration_submitted": "2016-05-10 15:08:14",
        "registration_status": "payment_accepted",
        "gender_title": "Mr.",
        "first_name": "Angel Daniel",
        "last_name": "Garaboa Paz",
        "email": "angeldaniel.garaboa@usc.es",
        "degree": "M.Sc.",
        "org": "University of Santiago de Compostela",
        "dept": "Physics Department",
        "country": "Spain",
        "country_code": "ES",
        "is_poster": true,
        "is_oral": false,
        "want_publication": true,
        "title": "Mixing of spherical bubbles with time-dependent radius in incompressible flows",
        "keywords": [
            "Applied fluid dynamics"
        ],
        "authors": [
            {
                "name": "Vicente Perez-Muñuzuri",
                "affil": "Group of Nonlinear Physics, Faculty of Physics, University of Santiago de Compostela. E-15782 Santiago de Compostela, Spain",
                "affil_id": 0
            },
            {
                "name": "Daniel Garaboa-Paz",
                "affil": "Group of Nonlinear Physics, Faculty of Physics, University of Santiago de Compostela. E-15782 Santiago de Compostela, Spain",
                "affil_id": 0
            }
        ],
        "affils": [
            "Group of Nonlinear Physics, Faculty of Physics, University of Santiago de Compostela. E-15782 Santiago de Compostela, Spain"
        ],
        "content": "The motion of contracting and expanding bubbles in an incompressible chaotic flow is analyzed\\\\in terms of the Finite-Time Lyapunov Exponents. The viscous forces acting on the bubble surface\\\\depend not only on the relative acceleration but also on the time-dependence of the bubble volume\\\\which is modeled by the Rayleigh--Plesset equation. The effect of bubbles coalescence on the coherent\\\\structures that develop in the flow is studied using a simplified bubble merger model. Contraction\\\\and expansion of the bubbles is favored in the vicinity of the coherent structures. Time evolution\\\\of coalescence bubbles follows a L \\'{e}vy distribution with an exponent that depends on the initial\\\\distance between bubbles. Mixing patterns were found to depend heavily on merging and on the\\\\time-dependent volume of the bubbles.",
        "image": "images/138.png",
        "image_squared": "images/138-squared.png",
        "image_caption": "XY-field of Finite-Time Lyapunov Exponents $\\sigma$ (s ) for different bubbles initial radius R0 and Reynolds numbers. Darker (red) colors indicate larger values."
    },
    {
        "abstract_number": 93,
        "abstract_submitted": "2016-02-12 16:17:55",
        "abstract_status": "accepted:oral",
        "registration_number": 93,
        "registration_submitted": "2016-02-12 16:17:55",
        "registration_status": "accepted:oral",
        "gender_title": "M",
        "first_name": "Anna",
        "last_name": "Gorska",
        "email": "anna.gorska@igf.fuw.edu.pl",
        "degree": "M",
        "org": null,
        "dept": null,
        "country": null,
        "country_code": null,
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Individual water drop-droplet collisions observed in a laminar flow with holography",
        "keywords": [
            "Experimental techniques",
            "Geophysical flows"
        ],
        "authors": [
            {
                "name": "Anna Gorska",
                "affil": "Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland; Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany",
                "affil_id": 0
            },
            {
                "name": "Jacob Fugal",
                "affil": "Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany; Institute of Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany",
                "affil_id": 1
            },
            {
                "name": "Subir Mitra",
                "affil": "Institute of Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany",
                "affil_id": 2
            },
            {
                "name": "Szymon Malinowski",
                "affil": "Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland",
                "affil_id": 3
            },
            {
                "name": "Stephan Borrmann",
                "affil": "Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany; Institute of Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany",
                "affil_id": 1
            }
        ],
        "affils": [
            "Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland; Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany",
            "Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany; Institute of Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany",
            "Institute of Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany",
            "Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland"
        ],
        "content": "We investigate collisions of water drop and droplets in a laminar flow in the Mainz vertical wind tunnel by means of in-line holography. We levitate a small rain drop (ca. 550-770 \\(\\mu \\)m) in a vertical stream of cloud droplets (20-70 \\(\\mu \\)m) moving with the terminal velocity of the drop (ca. 3 m/s). We record holographic images with a high speed camera. Processing them allow us to determine sizes and 3D positions of both drop and droplets. Connecting droplets into tracks (up to 6 point tracks) and choosing only tracks in the surrounding of the drop enable to find tracks leading to collisions. We found 106 collisions in a data series of about 50 s. Furthermore, thanks to holography, we are able to characterize the flow, how laminar and uniform it is and determine droplets size distributions and number concentrations and relative and terminal velocities of both. Making this experiment in turbulent conditions will likely be of significance for cloud and climate numerical models.",
        "image": "images/093.png",
        "image_squared": "images/093-squared.png",
        "image_caption": "Position of droplets around the drop in drop-centered and -normalized coordinates in the plane perpendicular to the flow. The scatter of collision positions outside the drop cross-section are due to measurement uncertainty."
    },
    {
        "abstract_number": 96,
        "abstract_submitted": "2016-02-12 18:10:21",
        "abstract_status": "accepted:poster",
        "registration_number": 96,
        "registration_submitted": "2016-02-12 18:10:21",
        "registration_status": "accepted:poster",
        "gender_title": "M",
        "first_name": "Anna",
        "last_name": "Gorska",
        "email": "anna.gorska@igf.fuw.edu.pl",
        "degree": "M",
        "org": null,
        "dept": null,
        "country": null,
        "country_code": null,
        "is_poster": true,
        "is_oral": false,
        "want_publication": false,
        "title": "Anisotropy and entrainment in laboratory analogues of cumulus and stratocumulus clouds",
        "keywords": [
            "Turbulence",
            "Multiphase flows",
            "Geophysical flows"
        ],
        "authors": [
            {
                "name": "Anna Gorska",
                "affil": "Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland; Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany",
                "affil_id": 0
            },
            {
                "name": "Szymon Malinowski",
                "affil": "Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland; Institute of Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany",
                "affil_id": 1
            },
            {
                "name": "Jacob Fugal",
                "affil": "Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany; Institute of Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany",
                "affil_id": 2
            },
            {
                "name": "Wojciech Kumala",
                "affil": "Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland",
                "affil_id": 3
            }
        ],
        "affils": [
            "Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland; Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany",
            "Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland; Institute of Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany",
            "Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany; Institute of Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany",
            "Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland"
        ],
        "content": "We use Particle Image Velocimetry to investigate turbulent mixing at the tops of cumulus and stratocumulus clouds simulated in a laboratory cloud chamber. Retrieving 2D velocity fields in a plane cut through the cloud tops allows us to characterize geometries of entraining structures and their differences in both cases and estimating turbulence anisotropy helps to understand entrainment process. With the use of image processing we are able to trace the cloud-clear air interface and calculation of velocity differences across this interface leads to the estimation of local entrainment / detrainment rates.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 119,
        "abstract_submitted": "2016-02-14 19:31:03",
        "abstract_status": "accepted:oral",
        "registration_number": 119,
        "registration_submitted": "2016-02-14 19:31:03",
        "registration_status": "accepted:oral",
        "gender_title": "M",
        "first_name": "Katarzyna",
        "last_name": "Karpińska",
        "email": "obikaa@gmail.com",
        "degree": "M",
        "org": null,
        "dept": null,
        "country": null,
        "country_code": null,
        "is_poster": false,
        "is_oral": true,
        "want_publication": false,
        "title": "Preferential concentration in cloud turbulence analyzed via motion of heavy, inertial particles in small vortices",
        "keywords": [
            "Multiphase flows",
            "Turbulence",
            "Geophysical flows"
        ],
        "authors": [
            {
                "name": "Katarzyna Karpinska",
                "affil": "University of Warsaw, Faculty of Physics, Institute of Geophysics",
                "affil_id": 0
            },
            {
                "name": "Szymon P. Malinowski",
                "affil": "University of Warsaw, Faculty of Physics, Institute of Geophysics",
                "affil_id": 0
            }
        ],
        "affils": [
            "University of Warsaw, Faculty of Physics, Institute of Geophysics"
        ],
        "content": "Many studies attribute the evolution of droplet size distribution in warm convective clouds to enhancement of collision-coalescence by turbulence. One of the phenomena in which turbulence manifests its influence on droplet spatial distribution is preferential concentration. Majority of research about preferential concentration focus on the statistical analysis though. Such approach obscures some dynamical effects important for better understanding cloud microphysics. One of them is droplets response to presence of vortex tubes considered the smallest elements of turbulence. In this study we examine characteristic features of motion of inertial, heavy droplets in theoretical models of such tubes aligned at arbitrary angle to the direction of gravity. The numerical model is used to simulate real cloud observation phenomenon in form of so called „swiss cheese clouds''.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 103,
        "abstract_submitted": "2016-02-13 21:31:28",
        "abstract_status": "accepted:oral",
        "registration_number": 103,
        "registration_submitted": "2016-02-13 21:31:28",
        "registration_status": "accepted:oral",
        "gender_title": "M",
        "first_name": "Michal",
        "last_name": "Remer",
        "email": "mremer@meil.pw.edu.pl",
        "degree": "M",
        "org": null,
        "dept": null,
        "country": null,
        "country_code": null,
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Dynamic contact angle of water droplet on superhydrophobic surfaces",
        "keywords": [
            "Multiphase flows",
            "Experimental techniques",
            "Droplets"
        ],
        "authors": [
            {
                "name": "Michal Remer",
                "affil": "Institute of Aeronautics and Applied Mechanics, Departament of Aerodynamics, Warsaw University of Technology",
                "affil_id": 0
            },
            {
                "name": "Kacper Stasiuk",
                "affil": "Institute of Aeronautics and Applied Mechanics, Departament of Aerodynamics, Warsaw University of Technology",
                "affil_id": 0
            },
            {
                "name": "Grzegorz Sobieraj",
                "affil": "Institute of Aeronautics and Applied Mechanics, Departament of Aerodynamics, Warsaw University of Technology",
                "affil_id": 0
            },
            {
                "name": "Jacek Rokicki",
                "affil": "Institute of Aeronautics and Applied Mechanics, Departament of Aerodynamics, Warsaw University of Technology",
                "affil_id": 0
            },
            {
                "name": "Konrad Gumowski",
                "affil": "Institute of Aeronautics and Applied Mechanics, Departament of Aerodynamics, Warsaw University of Technology",
                "affil_id": 0
            },
            {
                "name": "Beata Stańczyk",
                "affil": "Institute of Electronic Materials Technology",
                "affil_id": 1
            },
            {
                "name": "Lech Dobrzański",
                "affil": "Institute of Electronic Materials Technology",
                "affil_id": 1
            }
        ],
        "affils": [
            "Institute of Aeronautics and Applied Mechanics, Departament of Aerodynamics, Warsaw University of Technology",
            "Institute of Electronic Materials Technology"
        ],
        "content": "Presented workinvestigates and analyses dynamic contact of droplet at super-hydrophobic surfaces with a regular first order structure.Two silicon surfaces are investigated, differ only inthe nanostructure. Test stand equipped with fast camera and in-house software eligible to obtain repetability and knowledge about the physical parameters of droplets. Droplet impact were carried for different experimental cases.The crucial quantities - contact angle and maximal diameter of droplet, are obtained.Dynamic contact angle change have been confirmed. Modifications of the nanostructure in that surfaces, influence dropletimpact phenomena.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    },
    {
        "abstract_number": 68,
        "abstract_submitted": "2016-02-03 12:42:25",
        "abstract_status": "accepted:oral",
        "registration_number": 68,
        "registration_submitted": "2016-02-03 12:42:25",
        "registration_status": "accepted:oral",
        "gender_title": "M",
        "first_name": "Marcin",
        "last_name": "Wyrozębski",
        "email": "mwyrozebski@meil.pw.edu.pl",
        "degree": "M",
        "org": null,
        "dept": null,
        "country": null,
        "country_code": null,
        "is_poster": false,
        "is_oral": true,
        "want_publication": true,
        "title": "Efficient Usage of 2nd Order Sensitivity for Uncertainty Quantification",
        "keywords": [
            "Aerodynamics",
            "Computational methods"
        ],
        "authors": [
            {
                "name": "Marcin Wyrozębski",
                "affil": "Institute of Aeronautics and Applied Mechanics",
                "affil_id": 0
            },
            {
                "name": "Łukasz Łaniewski-Wołłk",
                "affil": "Institute of Aeronautics and Applied Mechanics",
                "affil_id": 0
            }
        ],
        "affils": [
            "Institute of Aeronautics and Applied Mechanics"
        ],
        "content": "We propose a method based on nodal representation of continuous geometrical uncertainty field. Such discretization leads to a large set of correlated uncertainties. Number of resultant uncertainties is too big to be analyzed with existing methods in reasonable time.\n\nThe proposed approach is based on the idea of reducing the number of analyzed uncertainties, maintaining at the same time high approximation accuracy. In order to do this one needs to compute directional 2nd order derivatives. This derivatives can be easily calculated with algorithms like tangent-on-reverse. It is expected that this approach will give significant gain in computational time.",
        "image": null,
        "image_squared": null,
        "image_caption": ""
    }
]