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Old   February 6, 2014, 10:37
Default Running incompressible and preconditioning simulations
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Hi all,

I'm trying to simulate a configuration at M = 0.062.

ALthough I've been able to obtain a converged solution using compressible RANS, still I was interested in running this with preconditioning.

I've observed that even after switching on preconditioning, the results are exactly the same. (although I've used Roe 2nd order for convective terms)

I've seen the same problem when trying to run a fully incompressible simulation. The log file states that the physical problem is compressible RANS even though I've turned on the incompressible option.

Has anyone else faced the same issues. If yes, please let me know how we deal with this.

THanks and regards,
Deepanshu.
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Old   February 6, 2014, 14:04
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Francisco Palacios
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Quote:
Originally Posted by deeps View Post
Hi all,

I'm trying to simulate a configuration at M = 0.062.

ALthough I've been able to obtain a converged solution using compressible RANS, still I was interested in running this with preconditioning.

I've observed that even after switching on preconditioning, the results are exactly the same. (although I've used Roe 2nd order for convective terms)

I've seen the same problem when trying to run a fully incompressible simulation. The log file states that the physical problem is compressible RANS even though I've turned on the incompressible option.

Has anyone else faced the same issues. If yes, please let me know how we deal with this.

THanks and regards,
Deepanshu.
Please find attached an example of compressible and incompressible config files (subsonic NACA0012 @ ~65MPH).

Best Regards,
Francisco
Attached Files
File Type: zip SubNACA0012.zip (6.6 KB, 45 views)
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Old   February 18, 2014, 02:04
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Dear Francisco,

Thank you very much.

Regards,
Deepanshu.
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