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cf and cp experimental vs numerical

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Old   August 5, 2012, 02:25
Default cf and cp experimental vs numerical
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Hamed Abdul Majeed
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Hi,
i have done an analysis of flow over backward facing step. The results behave as follows


Here is what I do not understand, the cp results seem ok. But the cf results are diverge drastically.

In case of cf the problem lies with wall shear!
What do u guys suggest??
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Old   August 5, 2012, 08:38
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Glenn Horrocks
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Check the definition of CF. There are many different definitions of parameters like this so before you go any further make absolutely sure that you are comparing the correct thing.
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Old   August 5, 2012, 14:18
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Hamed Abdul Majeed
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Thnx ghorrocks.

I used wall shear x instead of wall shear and the results are much better.
Thank you

Regards
Hamed

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