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-   -   Incompressible Turbulence models (http://www.cfd-online.com/Forums/openfoam/76459-incompressible-turbulence-models.html)

achinta May 26, 2010 06:27

Incompressible Turbulence models
 
Hi,
I am new to OF and want to learn how turbulence models are used in it.

There are tutorials which use k-epsilon and k-omega-sst models.

I want to try other turbulence models like q-zeta model, Spalart-Allmaras model and LES models like Smagorinsky, k-omega-sst-SAS and various other models given in OF.

Are there any tutorials using these models?

I need them to know the input files required to define constants and other inputs to the model.

Thank You

Regards,
Achinta

waynezw0618 May 26, 2010 06:29

The model constant can be found in the codes of this models

Quote:

Originally Posted by achinta (Post 260316)
Hi,
I am new to OF and want to learn how turbulence models are used in it.

There are tutorials which use k-epsilon and k-omega-sst models.

I want to try other turbulence models like q-zeta model, Spalart-Allmaras model and LES models like Smagorinsky, k-omega-sst-SAS and various other models given in OF.

Are there any tutorials using these models?

I need them to know the input files required to define constants and other inputs to the model.

Thank You

Regards,
Achinta


achinta May 26, 2010 06:37

Hi,
I saw some files in $HOME/OpenFOAM/OpenFOAM-1.6/src/turbulenceModels/incompressible/RAS/qZeta

I am not able to understand which one should be given as input in 0/ folder (initial conditions). I want to know the syntax of the inputs.

Thank You.

Regards,
Achinta

waynezw0618 May 26, 2010 11:45

by default the modeling constant do not need to be modified
and it is not put in the 0/ directionary

achinta May 27, 2010 10:35

Hi,
I want to use Lien Cubic K-Epsilon model for incompressible turbulent flow. Which divergence scheme is best for nonlinearStress i.e. div(nonlinearStress)?

Thank You.

Regards,
Achinta


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