yade-users team mailing list archive

Thread
Date

Re: [Question #175394]: numerical instability and small time steps

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Christian Jakob <question175394@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 01 Dec 2011 11:45:40 -0000
Reply-to: question175394@xxxxxxxxxxxxxxxxxxxxx
Sender: bounces@xxxxxxxxxxxxx

Question #175394 on Yade changed:
https://answers.launchpad.net/yade/+question/175394

Christian Jakob posted a new comment:
@chiara

i searched for "timestep" in PFC manual. i really could not find
anything referred to viscous contact damping and timestep determination.
it is clear to me, that timesteps should be a bit smaller in that case,
but not with factor 100! what i can imagine is, that some code details
are not explained in the manual...

i tested a script without viscous damping and the timestep is still small compared to PFC timestep.
i also tested a script without any walls or facets, but it has no effect on timesteps.

as mentioned above, i will try to reactivate the "old" test script with
two colliding spheres and come back with the news.

-- 
You received this question notification because you are a member of
yade-users, which is an answer contact for Yade.