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-   -   turbulence model simulation in unsteady flow (http://www.cfd-online.com/Forums/main/8652-turbulence-model-simulation-unsteady-flow.html)

Chang February 4, 2005 20:46

turbulence model simulation in unsteady flow
 
Hello~ I have simulated unsteady flow with various turbulence models(RANS). In two equations models case, the solution sometimes converges to steady state. I heard that this phenomenon is to dissipative characteristics of two-equation model. Actually I don't know this meaning exactly. Could you explain more detail to me ??

Is this related to the stagnation point anomaly called by Durbin.

Thanks in advance

Best regards

yaghoub February 6, 2005 04:12

Re: turbulence model simulation in unsteady flow
 

dd February 12, 2005 07:28

Re: turbulence model simulation in unsteady flow
 
I did many tests and the model RANS which seems to me most effective to reproduce the unsteady behavior of a flow would be model SST. dd nvs


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