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SU2 Diverging at low subsonic mach numbers

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Old   November 26, 2020, 07:06
Default SU2 Diverging at low subsonic mach numbers
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I was using SU2 to run some simulations on the ONERA M6 wing. The standard transonic test case (M~=0.84) converged fairly quickly and produced results that were well in agreement with the validation results.
Problem occurred when I tried to simulate a low subsonic flow (M=0.25) over the same wing. SU2 won't converge no matter how low I set the CFL. I wanted to ask are there any known issues with SU2 at low mach numbers for 3D flows?

Few details regarding my simulation:
Solver = RANS, SA turbulence model
0.25 Mach, Compressible flow
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Old   November 28, 2020, 23:34
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I would recommend you to try -

or SLAU.

Switch off the multigrid if it is on -

Also add -

You can try constant CFL initially (5, 10 or whatever works) and see if it goes through......
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case setup, divergence issue, subsonic flow

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