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How make F3D to reduce a time step many times down to dtmin?

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Old   December 16, 2009, 10:37
Default How make F3D to reduce a time step many times down to dtmin?
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gennady Markelov
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When a number of iterations reaches the maximum limit, F3D reduces time step or declare nonconvergence. I use very small value for the minimum time step limit, however, F3D never reduced time step down to this limit. Moreover, a number of time step reductions can be just one before nonconvergence despite that the time step is still much larger than the limit.
What controls a number of time step reductions? How to make F3D to reduce a time step many times until its value reaches the minimum limit?
Thank you.
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Old   January 28, 2010, 13:12
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Gennady, Have you tried contacting Flow Science, F3D's developer?
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