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Forum: OpenFOAM Post-Processing

March 25, 2008, 05:46

Replies: 29

Question to liftDrag

Views: 3,630

Posted By eugene

Because (for example in kEpsil

Because (for example in kEpsilon) turbulence->R() is calculated from

2/3*I*k - nut_*2*symm(grad(U))

The wall boundary of nut_ contains the effect of the wall function. (See "#include...

Forum: OpenFOAM Post-Processing

March 25, 2008, 04:52

Replies: 29

Question to liftDrag

Views: 3,630

Posted By eugene

Works like this: tauw = nu

Works like this:

tauw = nu * dU/dy_wall right?

Except we do not have dU/dy_wall, we have dU/dy_0 between the first node and the wall. Thus we calculate wall shear using a wall function. To...

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