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Why do my old simulations diverge?

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Old   February 27, 2019, 19:46
Default Why do my old simulations diverge?
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I have tried to use Star-CCM+ simulations which I had developed and used successfully 2-3 years ago, but they now diverge even when re-running model files and scenarios which ran well back then.

I have noticed that the polyhedral mesher is no longer available for the model set-ups I use now, but I have been having problems (divergence) even with the tetrahedral mesher I now have had to use.

Could anyone provide insight on what the reason for the divergence could be?

Thanks in advance.
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