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[Robert Caulk <question660585@xxxxxxxxxxxxxxxxxxxxx>]

Question #660585 on Yade changed:
https://answers.launchpad.net/yade/+question/660585

Robert Caulk posted a new comment:
Hello Lingran,

Happy to hear we have someone else to work on DFNFlow. Welcome :-)

In my opinion, you can do this with the current DFNFlow just fine. You
simply need to set updatePositions=True and use a high remesh frequency
(low meshUpdateInterval [1]). Warning: this will be computationally
expensive.

As far as changing the particle sizes, you will need to do this with
your constitutive law (JCFpm), not with DFNFlow.

>is it necessary to relate crack-flagged facets to cracks?

You mean: "do we need a NEW way to relate crack-flagged facets to
cracks". The answer is, yes, only if your deformation is so large that
the Delaunay triangulation is changing. In my experience with hydraulic
fracture rock simulation, the Delaunay triangulation never changed. Your
application sounds a bit theoretical. Maybe you can provide more
information? What kind of stiff brittle (crack-able) material also
experiences 50% solid volume changes?

Best,

Robert


[1]https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.FlowEngine.meshUpdateInterval

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