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Re: [Question #175606]: How does "particleSD_2d" work ...???

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Chareyre <question175606@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 24 Oct 2011 11:25:42 -0000
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Question #175606 on Yade changed:
https://answers.launchpad.net/yade/+question/175606

Chareyre proposed the following answer:
You could use 2 force engines. One with force f on one side, the other
with force -f on the other side. I'm not sure it is the best way however.
If you want a HET, you can simply remove particles from an initially
dense packing. "But then the ones from the top will fall down", you may
say. Ok, but it is like this in real HETs. What you need is cohesion at
contacts to keep them in positions more than inverted gravity.
Alternatively, use the symmetry of the problem and represent only one
side of it...

Bruno

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