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[Bruno Chareyre <question681232@xxxxxxxxxxxxxxxxxxxxx>]

Question #681232 on Yade changed:
https://answers.launchpad.net/yade/+question/681232

Bruno Chareyre proposed the following answer:
Hi
>the density is amplified by a factor of 1e9 to increase the calculation speed

It will not work. With such mass the particles will be nearly immobile on short time scale, and that's probably why the piston goes through.
Or you would have to scale down frequency by the sqrt of this multiplier, hence exactly the same number of time iterations in total.
Bruno

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