[kkkxx]

Hello everyone,

I'm relatively new to OpenFOAM simulation and asking any of you for help in my case regarding gas dispersion in the air (with no reaction).

I want to simulate gas dispersion in the air, with buoyancy effect induced by the density difference between them.
Solvers that I considered for this case are: buoyantSimpleFoam, buoyant BoussinesqSimpleFoam, reactingFoam, and rhoReactingBuoyantFoam.

I am wondering if buoyantSimpleFoam and buoyantBoussinesqSimpleFoam could handle multi-species problems like my case (I tried to add species transport equations in the source code, but I cannot compile them sucessfully).

ReactingFoam and rhoReactingBuoyantFoam are transient-state solver, it will take very long to just simulate several seconds of physical time. So I prefer to find a steady-state solver for my case concerning multi-species and density differences between them.

Do you have any suggestions for solving multi-speciecs transport problems using steady-state solvers? Anyone could help or offer some hints about this problem?

Thanks!