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convective flux exceeded stability limit!

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Old   January 10, 2019, 02:43
Default convective flux exceeded stability limit!
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Ebrahim Hamid
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Dear Flow3D users;

I run simulation with General Moving Objects option, after few seconds I get this message " convective flux exceeded stability limit" then the software start to re-estimate very long time to solve the problem. Suddenly the simulation ends and it dos not reach to the end of the time that I need.

Your help is highly appreciated.
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Old   February 19, 2019, 12:03
Adwaith Gupta
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Try setting up an initial time step (in numerics tab) much smaller than the time step you see in the simulation manager at t=0.
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