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-   -   Determination of w'w' in a 2D Model (http://www.cfd-online.com/Forums/fluent/42268-determination-ww-2d-model.html)

Erika Johnson September 8, 2006 21:09

Determination of w'w' in a 2D Model
 
Does anyone know, when the Reynolds Stress Model is used in a 2-D case, how does FLUENT determine what w'w' should be??? What empirical relation is it using and where can I read about it???

Thanks so much!

antonio September 12, 2006 04:43

Re: Determination of w'w' in a 2D Model
 
i made myself the same question the first time i probed the RSM; i simulated the chanel flow and the axilsymmetric pipe flow with enhanced wall treatment and when i plot <ww> versus y-coordinate the results were very similar to the correlations obtained from DNS and are shown in fluidynamic textbooks. I know it is not the solution but at least it seems fluent is right

Ralf Schmidt September 12, 2006 05:10

Re: Determination of w'w' in a 2D Model
 
have a look at

http://www.cfd-online.com/Wiki/Turbulence_intensity

Ralf


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