Question #452513 on Yade changed:
https://answers.launchpad.net/yade/+question/452513
Status: Open => Answered
Jérôme Duriez proposed the following answer:
In fact, there actually is some kind of DEM (Non Smooth Contact
Dynamics) which sticks to the rigid bodies point of view, and do not use
any overlap. YADE does not belong to this category, though..
In order to minimize interparticles overlap for a given stress state
(which is indeed given in a gravity deposition simulation), just use
higher particle stiffnesses i.e. FrictMat.young parameter (here it seems
you're using the default 1e7 value since you do not explicitly define
material parameters).
Nothing to do with engines list in such case.
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