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September 30, 2023, 00:52 |
Inner iteration automatically reduced
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#1 |
Member
Zhang
Join Date: Mar 2023
Posts: 72
Rep Power: 3 |
Hi, everyone.
I ran a unsteady simulation of a aircraft inlet, and I set the inner iteration as 30. But after 1250 steps, the inner iteration began to reduce, and finally to 13. I've never been in this situation before. Or does the inner iteration steps automatically decrease after convergence in a time step? I attatched my time domain setting below.Any advice and help would be very useful to me. Thank you for your patience. ------------------------------------------------------------------------------------ TIME_DOMAIN= YES TIME_MARCHING= DUAL_TIME_STEPPING-2ND_ORDER TIME_STEP= 5E-7 MAX_TIME= 1 UNST_CFL_NUMBER= 0.0 INNER_ITER= 30 TIME_ITER = 5000 RESTART_ITER=2 WINDOW_START_ITER = 4000 WINDOW_FUNCTION = SQUARE ------------------------------------------------------------------------------------- |
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September 30, 2023, 07:00 |
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#2 |
Senior Member
bigfoot
Join Date: Dec 2011
Location: Netherlands
Posts: 672
Rep Power: 21 |
Hi,
Yes, The convergence of the fields is monitored, I think unsteady monitors the same fields (CONV_FIELD= ..) as for steady simulations. |
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October 11, 2023, 03:59 |
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#3 |
Member
Zhang
Join Date: Mar 2023
Posts: 72
Rep Power: 3 |
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inner iteration, unsteady flow |
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