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-   -   queries about turbulence (http://www.cfd-online.com/Forums/fluent/42072-queries-about-turbulence.html)

Micheal August 21, 2006 01:53

queries about turbulence
 
Hi to all cfd users.I have gone though fluent help manual,and found follwing queries.Pls if anybody knows then give me a little idea.

(1) I have read in manual that Wilcox K-w model is sensitive to free stream value of B.C.why ?

(2) Why k -e is not good for near wall regions?

(3) what are blending functuions in mentor SST?

(4) Why k -e gives poor results for axi symmetric flows?

Thanking u all

Michael

Albert F. August 21, 2006 03:35

Re: queries about turbulence
 
I can't answer all your questions but as I know you can use k-e in near wall regions imposing an yp+ near to 1 an enabling enhanced wall treatment. This is how I use turbulence in my cases.

Albert.


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