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adjust max allowed Courant based on max resid. within the last X timesteps |
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March 19, 2020, 08:55
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adjust max allowed Courant based on max resid. within the last X timesteps
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Senior Member
Louis Gagnon
Join Date: Mar 2009
Location: Stuttgart, Germany
Posts: 338
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I'm currently playing with systemCalls to adjust the Courant number of a pimpleFoam simulation with an abrupt start.
Courant ~ 1 keeps the starting instabilities under control, but I feel I can go much higher after that. I think an efficient method would adjust the Courant number based on the maximum number of iterations required to solve the pressure field over a specified time-range up to the current time (in my case I would use a period). Does that make sense and has anyone already performed such adaptation? |
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