[ms.hashempour]

Dear guys

I want to develop solver with using advection diffusion eq. for concentration. I have to add the following eq. to the multiphaseInterMixingFoam solver:

∂Ci/∂t = − ( u + u si ) ∇C i + ∇ ( α ( ν + ν t ) ∇C )


where α is the phase fraction of water in the domain. u is the fluid velocity, usi is the sediment particles settling velocity.

would you plz guide me to add this eq to the solver?


many thanks

[dlahaye]

Look at scalarTransportFoam.

[ms.hashempour]

Dear Domenico

Thanks for your answer.
I have problem to add this term:

(u + u si)

when I want to add usi (particles settling velocity) which is vector, I face an error. I did as exact as your suggestion. But I could not add another vector.