# nutUSpaldingWallFunction

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 February 26, 2013, 16:01 nutUSpaldingWallFunction #1 Member   Dogan Join Date: Nov 2012 Location: Bochum/Germany Posts: 42 Rep Power: 4 Hi everybody, I am working on the wall treatment in OpenFOAM, and as i've learned, the so called nutUSpaldingWallFunction is giving very good results in all y+ regions. I also made some calculations with it using kOmegaSST turbulence model, and as expected, it gave me very good results. But i would like to go deep with this wall treatment, and i would like to know the formulation (governing equations) of this wall function. Does anyone can help me with this? how can i find the governing equations of nutUSpaldingWallFunction in OpenFOAM? thanks in advance Dogan

 March 30, 2013, 05:10 #2 Senior Member   Fumiya Nozaki Join Date: Jun 2010 Location: Yokohama, Japan Posts: 168 Rep Power: 7 Hi dogan, You might want to read the doctoral thesis by Dr. Eugene de Villiers(pp.80-81): http://powerlab.fsb.hr/ped/kturbo/Op...ersPhD2006.pdf Best regards, Fumiya

March 31, 2013, 12:32
#3
Senior Member

Join Date: Nov 2012
Posts: 168
Rep Power: 4
Hi,

the source paper:

Spalding, a single formula for the law of the wall. Journal of applied mechanics. 1961.

The story is complete there.

Quote:
 Originally Posted by dogan Hi everybody, I am working on the wall treatment in OpenFOAM, and as i've learned, the so called nutUSpaldingWallFunction is giving very good results in all y+ regions. I also made some calculations with it using kOmegaSST turbulence model, and as expected, it gave me very good results. But i would like to go deep with this wall treatment, and i would like to know the formulation (governing equations) of this wall function. Does anyone can help me with this? how can i find the governing equations of nutUSpaldingWallFunction in OpenFOAM? thanks in advance Dogan

 April 2, 2013, 05:14 #4 Member   Dogan Join Date: Nov 2012 Location: Bochum/Germany Posts: 42 Rep Power: 4 Thanks a lot to you all, it really helped your answers. regards Dogan

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