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-   -   Low Re SST model (http://www.cfd-online.com/Forums/cfx/89868-low-re-sst-model.html)

Far June 24, 2011 05:36

Low Re SST model
 
Dear Frends

I want to enable the low reynolds number version of SST model. How to do this? I can only see the automatic wall treatment in the CFX pre.

Best Regards
Far

ghorrocks June 24, 2011 06:19

There is no Low Re version of SST. It does not need it as the k-omega based turbulence model works reasonably well at low Re with no modifications.

Far June 24, 2011 06:51

Quote:

Originally Posted by ghorrocks (Post 313383)
There is no Low Re version of SST. It does not need it as the k-omega based turbulence model works reasonably well at low Re with no modifications.


Dear Ghorrocks,

I want to run the standard SST model without automatic wall treatment. The standard SST has the requirement of yplus less than 2 (as on the K omega model)

Far June 25, 2011 13:11

any help please?

a.ob June 30, 2011 12:00

http://www.cfd-online.com/Wiki/SST_k-omega_model

http://www.cfd-online.com/Wiki/Near-...k-omega_models

Do a search in the CFX help file and you will find a lot more information about the SST model and wall functions.


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