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How to get the wall shear stress by UDF

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Old   June 24, 2003, 12:13
Default How to get the wall shear stress by UDF
Chen Fangzhi
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I need the value of wall shear stress of the first cell close to a wall and use it to get the friction velocity by UDF. Is there any Macro available to do this? Also, is it possible to get the yplus of a cell near a wall (not necessary the first cell to the wall)?

Thanks a lot!!!
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Old   June 24, 2003, 12:17
Default Re: How to get the wall shear stress by UDF
Chen Fangzhi
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The flow is turbulent and I use the RSM model.I want to fix the normal Reynolds stress component as an empirical function of y+. It is important to get the value of y+ or wall shear stress from which to get y +.
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Old   May 21, 2010, 09:32
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I know the post was a while ago.

Did you find out how to access the wall shear stress using a UDF ?
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Old   November 11, 2014, 06:03
Default hi
Qureshi M Z I
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hi, have u find the answer please share this, i want to calculate the wall shear and y plus at first node height and also the reynold number
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