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Time step for solver, convergence and simulation results in COMSOL 3.5(a)
Posted Sep 4, 2012, 7:18 a.m. EDT Version 3.5a 0 Replies
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Can some body guide me regarding the convergence of the time dependent simulation. What exactly the inverse of the time step means and how much it should fall in order to consider convergence wrt time (I am using a time step of 1ms).
Another issue is that if I select free time step for the solver my results are different from the one calculated at strict time steps. I have no basis of comparison in this case which time step should I chose (free or strict)???? Do we have to increase the tolerances if we are using strict time steps (but already the default tolerances are kind of high like 0.01 relative and 0.001 absolute)
Kindest regards
Hello Sin Kim
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