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Problem with Spalart Allmaras turbulence model |
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July 31, 2023, 16:05
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Problem with Spalart Allmaras turbulence model
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New Member
David
Join Date: Jul 2023
Posts: 4
Rep Power: 2  |
Hello everyone, I wonder if I could get suggestions to solve the following issue.
I did a simulation of a centrifugal compressor using the SST turbulence model in CFX without any problem (the mesh was ok and the y+ was lower than 1) however when I changed to Spalart Allmaras, the simulation crashed after, more or less, 15 iterations. To solve it, I tried to simulate with a less refined mesh in order to use it for the correct one but it failed. Besides, I tried using upwind and first-order schemes instead of high resolution it didn't work. I even tried to use the results from the SST simulation to initialize this one but it crashed. Can anyone give some recommendations about what I could try? |
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| cfx, spalart allmaras model, sst k-w |
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