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Old   March 10, 2005, 14:39
Default I am using a turbulence model
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Kaushik Balakrishnan
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I am using a turbulence model for which I have to know the mean velocity (time average). I am currently using the "Umean" option in FOAM. Could anyone please tell me whether "Umean" is a time average or not, and if so, in what time interval interval. I just want to know how FOAM finds the average velocity (Umean) before I use Umean.

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Old   March 10, 2005, 15:02
Default What do you mean by the "Umean
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What do you mean by the "Umean" option?
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Old   March 11, 2005, 03:34
Default Is the turbulence model you ar
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Is the turbulence model you are using a RANS model? Like k-epsilon?

/Fabian
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Old   March 11, 2005, 11:18
Default I typed 'Umean' in 'fields' be
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Kaushik Balakrishnan
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I typed 'Umean' in 'fields' belonging to sample. When I sample the data, I guess Foam is finding an average. I wanted to confirm whether this is a time average, and also in what time interval. I am using the oodles solver, Smagorinsky model.


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Old   March 11, 2005, 11:31
Default Yes it is time average. Have
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Yes it is time average.
Have a look at calculateAverages include file
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