** Changed in: yade
Status: Fix Released => Confirmed
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https://bugs.launchpad.net/bugs/806944
Title:
different behavoir of Hertz model while comparing PFC and YADE
Status in Yet Another Dynamic Engine:
Confirmed
Bug description:
Hello,
During verifiing my model I compared output from PFC 4.0 with the
output from YADE (bzr2877 on Debian Squeeze 64bit). There I found a
different behavior between these two programs. I dont know if this is
a bug or not, but I hope someone can explain the different behavior.
The model itself is very simple. There are two spheres, an upper one and a
lower one. The lower one is fixed and the upper one is falling down to the
lower one, collides and jumps back. The value of interest is the flyback height
of the upper particle.
In PFC I measure higher values of flyback height, then in YADE (see log-files
in the attachment).
Can someone tell me why there is a difference in the flyback height?
(input parameters are the same for both programs ... see
caller_two-spheres-jumping.dat for PFC and two-spheres.py for YADE)
Regards,
Christian Jakob
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