wall shear stress -- CFD Online Discussion Forums

June 4, 2014, 11:21

wall shear stress

kd55

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Join Date: Nov 2011

Posts: 22

Rep Power: 14

Hi there,

Since I'm no expert with OF, I was dubious of what answer I was getting out of the wallShearStress utility. So to double check, I have taken multiple sample lines (velocity profiles) from the walls and used a clauser plot to calculate the wall shear stress and frictional velocity. As i expected, I am getting different answers (please see attached plot). question is: why is there a difference? and which one would you trust more?

Kind regards,

Kit

Attached Files

04channel_U_tau.pdf (5.0 KB, 20 views)

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