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How to calculate the Turbulence Itensity in LES

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Old   March 29, 2005, 05:03
Default How to calculate the Turbulence Itensity in LES
Jiang Ning
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I am now using the fluent LES model to simulate a trasition problem. Can someone told me how to calculate the Turbulence Itensity and other parameters with the result that get from fluent LES model ? Now all these parameters is empty.
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Old   April 4, 2005, 13:28
Default Re: How to calculate the Turbulence Itensity in LE
Chetan Kadakia
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Fluent will calculate it for you. You can either view the data through contours, monitor through a surface monitor, or just go to report values for an average.
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Old   April 13, 2005, 13:52
Default Re: How to calculate the Turbulence Itensity in LE
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A quick note here:

By Default the method used for calculating the Turbulence Intensity in the panels is not accurate. This is already documented. Fluent uses a constant velocity as specified under Report -> Reference values.

It is considered more instructive to use sqrt(2*k_phase/3) / |v_phase| in a custom field function and then obtain your Turbulence Intensity values from there.
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