selecting turbulence model and its boundary
Hi,
I am looking into the different turbulence model and would like to know more about it. At the moment, I am looking into k-epsilon, k-omega and RSM model. k-epsilon and k-omega These are common RANS model used in OpenFOAM, aka RAS. Depending on which model is chosen, either epsilon or omega has to be defined. Should a wallfunction (ie { type kqRWallFunction; value uniform 0.0; } ) or intensityfunction { type turbulentIntensityKineticEnergyInlet; intensity 0.05; value uniform 1; } be a better choice as BC for the two models? Or are the two BC actually the same since the intensity, k and e are actually all related through: (ref: http://www.cfd-online.com/Wiki/Turbu...ary_conditions) Quote:
RSM For this model, I have yet to understand it much. Am I right to say that for OpenFOAM RSM is operated through an LRR RASModel? It will be great if more info could be provided for this model. Regards |
All times are GMT -4. The time now is 05:26. |