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Determination of w'w' in a 2D Model

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Old   September 8, 2006, 22:09
Default Determination of w'w' in a 2D Model
  #1
Erika Johnson
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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!
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Old   September 12, 2006, 05:43
Default Re: Determination of w'w' in a 2D Model
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antonio
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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
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Old   September 12, 2006, 06:10
Default Re: Determination of w'w' in a 2D Model
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Ralf Schmidt
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have a look at

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

Ralf
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