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Old   November 2, 2009, 12:21
Default LES and modified pressure
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I'm doing non-compressible turbulence calculations.

In K-eps model, is solved a modified pressure p'=p+2/3.rho.k
it is more or less commonly assumed that the second term is negligible, therefore this is what is proposed as "pressure" in post.

In LES model, the modified pressure solved is p'=p-1/3.tau_kk. Questions are
1. is this the pressure proposed in cfx post ?
2. is it verified that the second term is negligible in any cases ? I couldn't find any explanation on this point in the CFX help.

Thank you.
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les modified pressure

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