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[Jérôme Duriez <question689293@xxxxxxxxxxxxxxxxxxxxx>]

Question #689293 on Yade changed:
https://answers.launchpad.net/yade/+question/689293

Jérôme Duriez posted a new comment:
Hi,

For reading material, I guess you can check all references by Catalano,
Chareyre et al. in https://yade-dem.org/doc/publications.html and
scientific literature.

As for your new error, it seems to relate with some "bad" cases for the
CGAL triangulation, and zero distances  between adjacent cells, hence
infinite permeability (I'm out of my YADE confort zone and kind off
speculating here..)

See https://gitlab.com/yade-
dev/trunk/-/blob/master/lib/triangulation/FlowBoundingSphere.ipp#L717

If I were you, I would definitely shorten your script, and try to focus on this 4 sphere example with default materials and a shorter script.
Critical thinking whether a 4 spheres packing can lead to a sound Triangulation would certainly also help.

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