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Message #16604
Re: [Question #662576]: How to model Grass?
Question #662576 on Yade changed:
https://answers.launchpad.net/yade/+question/662576
Status: Open => Answered
Jérôme Duriez proposed the following answer:
Hi,
"explosion" usually corresponds to the divergence of the Finite
Difference scheme used for integrating the motion equations (in
NewtonIntegrator engine), because of a too high time step.
Fortunately, Yade proposes the GlobalStiffnessTimeStepper [*] engine
exactly for this purpose: compute the appropriate (maximum) time step
that avoids divergence.
Unfortunately, it seems you're not using this engine in your script, but
a fixed time step instead (which thus may be too high).
Did you try with GlobalStiffnessTimeStepper (at best) / a lower time
step manually defined (at least) ?
[*] https://yade-
dem.org/doc/yade.wrapper.html#yade.wrapper.GlobalStiffnessTimeStepper
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