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the result of pitzDaily using simpleFoam and pisoFoam

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Old   February 15, 2010, 14:12
Default the result of pitzDaily using simpleFoam and pisoFoam
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Kyungrock Kim
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Dear Formers

I've performed bunch simulations for pitzDaily case(Experimental inlet and directMapped etc.) using simpleFoam and pisoFoam.
However, the results, especially streamwise mean velocity profile are pretty
different even at tutorial case between two solvers. I've simulated locDynOneEddy, OneEddy, Spalart-Allmaras(LES), and k-epsilon, kOmegaSST, SpalartAllmaras(RAS)

Weirdly, RANS results is better than those of LES.

I suspect that pisoFoam is not correct.

Are there any observation from this type of simulations?


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Old   March 16, 2010, 14:38
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Paul Garlick
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One thought: are the RANS and LES cases grid independent?

I have run the tutorial cases in OF 1.5 and also noticed the large differences in the results. However, the grid is the same for both cases. For the LES case it is likely that a finer grid is required.
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