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Divergence on fan calculation

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Old   August 19, 2020, 13:16
Default Divergence on fan calculation
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Good evening,


I am trying to carry out a calculation of a centrifugal fan but the calculation doesn't converge (graph in attachment) :


Do you have any idea of what could be the root cause ?


Thank you in advance.


Best regards,
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File Type: pdf divergence.pdf (10.5 KB, 6 views)
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Old   August 20, 2020, 02:23
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Ok, I think I found the issue.
0 pressure at inlet seems to cause the problem. Solved if I put 0 at outlet and zero gradient at inlet.
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