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Old   November 10, 2011, 07:47
Default CFX Spalart Allmaras turbulence models
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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/DOMAINefault 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!!!!!
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Old   November 10, 2011, 08:12
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(I assume) It's the one called Eddy Viscosity Transport Equation. Check the help files to confirm.
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Old   November 10, 2011, 08:39
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thanks for your reply,I will have a try.
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Old   November 10, 2011, 09:17
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It shall be shown in in CFX Pre once you enable the beta features.

check this out Spalart-Allmaras model
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Old   November 10, 2011, 09:39
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Thanks ver much. How to enable the beta features?
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Old   November 10, 2011, 09:52
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Figures are attached at the very very last post in this thread Comparison of fluent and CFX for turbomachinery
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Old   November 10, 2011, 09:53
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Quote:
Originally Posted by Far View Post
It shall be shown in in CFX Pre once you enable the beta features.

check this out Spalart-Allmaras model
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!!!
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Old   November 10, 2011, 09:57
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you should be
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Old   September 24, 2013, 10:02
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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?
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Old   September 24, 2013, 10:53
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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.
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