[rrsantos]

Hello all,

I am quite interesting in add the buoyant terms in k-epsilon model in OpenFOAM, but I am not sure how the best way to do this.

Is there an option to add buoyancy effects using fvOptions? Or do I need to modify the code?

I know there is a buoyantKEpsilon for compressible flow, but I want to modify RNG kEpsilon.

Regards,
Raphael

[calf.Z]

Originally Posted by rrsantos

Hello all,

I am quite interesting in add the buoyant terms in k-epsilon model in OpenFOAM, but I am not sure how the best way to do this.

Is there an option to add buoyancy effects using fvOptions? Or do I need to modify the code?

I know there is a buoyantKEpsilon for compressible flow, but I want to modify RNG kEpsilon.

Regards,
Raphael

There is Gcoef in buoyantKEpsilon.C. Shouldn't you move this term to you model to create the buoyancy term?

[agustinvo]

Yes, you should mimic what you have in the compressible buoyantKEpsilon model, but check also how you express the incompressibility effects.

[rrsantos]

Hi Jianrui and Agustín,



thanks for the help.



I used the buoyantKEpsilon in OpenFOAM and modified it to apply in an incompressible solver. I posted it as a reply in another post. The link is bellow



production due to buoyancy in turbulence models in openfoam