Question #688685 on Yade changed:
https://answers.launchpad.net/yade/+question/688685
Status: Open => Answered
Bruno Chareyre proposed the following answer:
You could filter out external elements and use local velocity to extract
flux in the core. That's not straightforward but it could probably be
done (either with c++/python or with paraview). You could also
certainly use alpha shapes to approach proper definition of the external
surface. Or you could block external cells so that they do not
participate in the flow (see blockHook). None of these is out-of-the-box
though.
Do you absolutely need a cylinder? Permeability is shape-independent...
Bruno
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