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-   -   Which turbulent model should be used? (http://www.cfd-online.com/Forums/cfx/24266-turbulent-model-should-used.html)

erick July 14, 2007 05:00

Which turbulent model should be used?
 
Dear friends,

I am simulating compressible fluid (M > 2) in a cylinder.

Could you give me some advice on which turbulent model I should choose?

Thank you in advance.

Best Regards

Eric

Bart July 15, 2007 00:41

Re: Which turbulent model should be used?
 
Rotating? Single-phase? Wat is the data you need (heat transfer)? etc etc. You need to give some more information, but you can start with the SST model.

Eric July 15, 2007 02:00

Re: Which turbulent model should be used?
 
Many thanks.

About my model: No rotating. Single-phase Static pressure on the wall is needed.


Bart July 15, 2007 03:03

Re: Which turbulent model should be used?
 
SST will do. Just make sure you use a high definition schema and good resolution near shock waves as that will mostly determine your pressure profile.

Eric July 17, 2007 00:08

Re: Which turbulent model should be used?
 
Thank you. Mr. Bart.

In your comment, Does "a high definition schema and good resolution" mean that I should use "High resolution"?


Bart July 17, 2007 05:53

Re: Which turbulent model should be used?
 
That means a fine grid (for good shock resolution) and a high resolution schema indeed.

Bart


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