[Zato_Ichi]

Dear collegues !

I need an advice on the CFD code validation procedure. I have implemented CFD solver for compressible, viscid gaseous mixture of thermally ideal gases (gamma = gamma(Y_i,T), where Y_i - component mass fraction), taking into account thermal conductivity and multicomponent diffusion. Gasdynamics of the gaseous mixture works fine as I can see from the comparison between numerical solution and well-known classic gasdynamical tests (e.g. Sod's test for multicomponent shock tube flow, or Sedov problem). The question is how to verify thermal conductivity and multicomponent diffusion ? Maybe you can suggest some tests on multicomponent diffusion in the gaseous mixture with strong theoretical or experimental foundation ? For example I thought about simple diaphragm test with discontinuity in concentrations (e.g. hydrogen on the left and oxygen on the right), or discontinuity in temperature, but I cannot find any solutions for this problem with gasdynamics taken into account.

Best regards, Ivan.