|December 16, 2009, 10:37||
How make F3D to reduce a time step many times down to dtmin?
Join Date: Dec 2009
Posts: 3Rep Power: 8
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?
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