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[Jan Stránský <question689439@xxxxxxxxxxxxxxxxxxxxx>]

Question #689439 on Yade changed:
https://answers.launchpad.net/yade/+question/689439

    Status: Open => Answered

Jan Stránský proposed the following answer:
> If I use walls as top and bottom boundaries instead of the clump, I
can successfully confine the spheres within the middle space without any
penetrating issue happen.

I **think**, that the boundary spheres are "more sparse" and the free
particles are easier penetrated than in the case of walls

> I am wondering whether I can "turn off" the periodic boundary
condition in the Y direction to avoid this issue. Do you know how to do
that?

I am not sure if the problem is related to periodicity in y direction..
Anyway, "turn off" periodicity in one direction is achieved by enlarging sufficiently the periodic cell

cheers
Jan

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