CFX Spalart Allmaras turbulence models
 

Hi,
I am using CFX13, But i cannot find Spalart Allmaras turbulence models. When i edited the ccl in the Command Editor, changing the TURBULENCE MODEL option to Spalart Allmaras(I do not know if this is right), it showed
"The parameter "Option" in "/FLOW:Flow Analysis 1/DOMAIN:Default Domain/FLUID MODELS/TURBULENCE MODEL" has the value "Spalart Allmaras". This does not match any of the allowed values: "Laminar, k epsilon, k epsilon EARSM, SST, ...".
I am not sure if i am using the so called Beta version. How to add Spalart Allmaras turbulence models in CFX.Thanks!!!!!

(I assume) It's the one called Eddy Viscosity Transport Equation. Check the help files to confirm.

thanks for your reply,I will have a try.

It shall be shown in in CFX Pre once you enable the beta features.

check this out http://www.cfd-online.com/Forums/cfx...ras-model.html

Thanks ver much. How to enable the beta features?

Figures are attached at the very very last post in this thread http://www.cfd-online.com/Forums/cfx...chinery-3.html

I did the following steps to enable the beta features.
"start CFX-Pre and select Edit > Options. When the Options dialog appears, select CFX-Pre and check Enable Beta Features. Click OK to save the change. You will now be able to access the “beta visible” features listed below. "
Now I can still not be able to see the spalart-allmaras model.
Thanks!!!

you should be ;)

Hi everybody,
I'm trying to use the SA-model with cfx 14.5 but I don't know why the wall scale equation is resolved with this model. Am I making a mistake by defining my case or is it normal?

Neither the CFX Help or the Training Material from the ANSYS Customer Portal includes anything about the Spalart-Allmaras model since it remains a beta feature but in the CFX (14.5) Modeling Guide section 4.2 it says All turbulence models in CFX are suitable for a wall function method.