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-   -   nutUSpaldingWallFunction (http://www.cfd-online.com/Forums/openfoam/113790-nutuspaldingwallfunction.html)

 dogan February 26, 2013 16:01

nutUSpaldingWallFunction

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?
Dogan

 fumiya March 30, 2013 05:10

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

 hz283 March 31, 2013 12:32

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 (Post 410263) 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

 dogan April 2, 2013 05:14

Thanks a lot to you all,
regards
Dogan

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