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-   -   convegence problem with high angle of attack (https://www.cfd-online.com/Forums/cfx/69512-convegence-problem-high-angle-attack.html)

littlelz October 26, 2009 05:32

convegence problem with high angle of attack
 
I am running transitional simulation in CFX12 with a high angle of attack. The similar simulation under the same operating conditions but with 0 deg angle of attack has also been done and a converged results was obtained (001.res). then I use this 001.res as initial data to start running high angle of attack case, but no convergence at all no matter what I have tried. why is it? Could you please give me some ideas on it? how to obtain converged result for the high incidence angle case?


many thanks,


littlelz

stumpy October 27, 2009 15:42

I would guess it's transient. Try running transient for a while and see if this converges.

ghorrocks October 28, 2009 06:07

http://www.cfd-online.com/Wiki/Ansys...gence_criteria


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