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Old   June 25, 2019, 11:09
Default Convergence issues
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Hello again! I am trying to run the hypersonic double cone case as a test (mesh attached), but SU2 diverges before displaying any iterations. The error it returns is:
Error in "void CIntegration::Convergence_Monitoring(CGeometry *, CConfig *, unsigned long, double, unsigned short)":
-------------------------------------------------------------------------
SU2 has diverged (NaN detected).
------------------------------ Error Exit -------------------------------
Full output is attached. What could be causing this?
Mesh and CFG: https://drive.google.com/file/d/1TC4...ew?usp=sharing
Attached Files
File Type: txt q.o6181.txt (11.4 KB, 24 views)
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Old   June 25, 2019, 12:36
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Wally Maier
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I cant access your cfg/mesh files from where I am.

However, an instant divergence could suggest a few problems (not in any order of likelihood):
1.) Something is set incorrectly in preprocessing/SetNondimensional routines
2.) The mesh has some issues
3.) The numerical scheme has issues at large mach numbers.


I would suggest turning off multigrid to start. If you could post a .txt file of the config (not through google docs), I could take a look.


Best,
Wally
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Old   June 27, 2019, 13:49
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I got it to work, thanks for the help!
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Old   September 17, 2019, 03:21
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Angu Praveen
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could you tell me what the problem was?
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