The dynamic viscosity of gas could depend on the background gas. See Table 1-2 in White (2006), "Viscous Fluid Flow" https://github.com/Nicholaswogan/photochem/blob/9fd679ee0c6dd491e82badd230549c0e43460b39/src/photochem_eqns.f90#L168
The dynamic viscosity of gas could depend on the background gas. See Table 1-2 in White (2006), "Viscous Fluid Flow"
photochem/src/photochem_eqns.f90
Line 168 in 9fd679e