I plan to run electroencephalography simulation of electric voltage field from point current dipolar source inside homogeneous conducting electrically isolated ball.
Physically it is Poisson equation on electric potential
$$\nabla \cdot (\sigma \nabla \Phi) = \nabla \cdot \mathbf{J}_{e}$$
where $\Phi$ is the electric potential, $\sigma$ - electrical conductivity of the tissue, $\mathbf{J}^{e}$ - the external current density.
Electrical isolation means $\left. \frac{\partial \Phi}{\partial \vec{n}} \right|_{r = r_s} = 0$ , where $r_s$ is ball radius.
Is is possible to solve this problem using StatCurrentSolve / StatCurrentSolver (whatever else solver) from Elmer ?
In the commercial FEM software I have modeled dipolar source as miniature prism with known projections of $\vec{Je}$ [ $\frac{A}{m^2}$ ] defined in prism volume.
I plan to run this simulation using FreeCAD with FEM Workbench, but I have problems with defining point current dipolar source.
Could please someone guide me how solve this task using Elmer and FreeCAD?
I plan to run electroencephalography simulation of electric voltage field from point current dipolar source inside homogeneous conducting electrically isolated ball.
Physically it is Poisson equation on electric potential
where$\Phi$ is the electric potential, $\sigma$ - electrical conductivity of the tissue, $\mathbf{J}^{e}$ - the external current density.$\left. \frac{\partial \Phi}{\partial \vec{n}} \right|_{r = r_s} = 0$ , where $r_s$ is ball radius.
Electrical isolation means
Is is possible to solve this problem using StatCurrentSolve / StatCurrentSolver (whatever else solver) from Elmer ?$\vec{Je}$ [ $\frac{A}{m^2}$ ] defined in prism volume.
In the commercial FEM software I have modeled dipolar source as miniature prism with known projections of
I plan to run this simulation using FreeCAD with FEM Workbench, but I have problems with defining point current dipolar source.
Could please someone guide me how solve this task using Elmer and FreeCAD?