Help for setting varying timesteps
The simple solution is always hard to get. After having searched in the forum for a good solution to set varying timesteps with an CEL expression without sucess, here is my way to obtain:
first 300 iterations -> 0.7s
next 300 iterations -> 0.01s
I hope I can help somebody who has the same task.
You could also have done it with a 1D interpolation function. Same end effect, but possibly easier to understand.
I wanted to change the time in a jump function. But is a linear change better in regard to convergence?
You can define step functions in the 1D interpolation function. The following series of points define a step function good enough for most people:
Yes, a sudden change in time step size can cause convergence issues. It will cause accuracy issues as well. Ramping the time step change will help both problems.
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