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[Jan Stránský <question677865@xxxxxxxxxxxxxxxxxxxxx>]

Question #677865 on Yade changed:
https://answers.launchpad.net/yade/+question/677865

    Status: Open => Needs information

Jan Stránský requested more information:
Hello,

> for b in top:
>         b.state.vel[1] = -1/ O.dt
>         O.step()

O.step should not be in the for loop:
for b in top:
        b.state.vel[1] = -1/ O.dt
O.step()

Please be more specific on what "embed" and "expand" means..

The situation what you get is after 1 iteration, so there is no time for
other particles to react. The displacement is applied in just one time
step, it is also possible to set lower velocity and let the velocity be
applied for longer time to get "smooth" displacement.

Jan

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