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-   -   isotropic homogeneous turbulent flow field with OpenFoam (http://www.cfd-online.com/Forums/openfoam/96126-isotropic-homogeneous-turbulent-flow-field-openfoam.html)

Matthias89 January 13, 2012 00:15

isotropic homogeneous turbulent flow field with OpenFoam
 
Hello!

Is it possible to generate a isotropic homogeneous turbulent flow field with OpenFoam and how long would it take for me as a OpenFoam beginner to finish that?

Thanks!

seboxx January 16, 2012 14:45

Correct me if I am wrong, but isn't isotropic, homogeneous turbulent flow a contradiction?
I mean you need local inhomogeneities for turbulent behaviour and non isotropy even for laminar flow right? I mean how can you have flow if your volume (or space ) is isotropic and homogeneous? What would drive the flow?

anishtain4 February 5, 2012 08:26

Yes seboxx, you are wrong, homogenous box of turbulence is a historical case which is in center of interest. Uniform flow after a grid is homogenous if you move with the average velocity. and it decays unless you force it to preserve which is not physically possible but as a numerical method


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