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-   -   Definition of S in SpalartAllmarasDDES::rd (http://www.cfd-online.com/Forums/openfoam-bugs/79108-definition-s-spalartallmarasddes-rd.html)

Luise August 12, 2010 12:51

Definition of S in SpalartAllmarasDDES::rd
 
Hi,

in SpalartAllmarasDDES the denominator of rd uses the magnitude of vorticity, like the RAS-model. In the original paper Spalart uses the magnitude of the gradient of U, "in order to be slightly more robust in irrotational regions".

Regards,
Luise

SergioF August 16, 2010 06:49

Hi Luise
 
Thanks.

rd has been updated and pushed to 1.7.x version on our web page.

Sergio


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