yade-users team mailing list archive

Thread
Date

Re: [Question #374814]: What time step is prescribed?

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Jérôme Duriez <question374814@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 31 Aug 2016 15:03:01 -0000
Reply-to: question374814@xxxxxxxxxxxxxxxxxxxxx
Sender: bounces@xxxxxxxxxxxxx

Question #374814 on Yade changed:
https://answers.launchpad.net/yade/+question/374814

    Status: Open => Answered

Jérôme Duriez proposed the following answer:
Hello,

I did not really get your question, unfortunately. Usually there is a
maximum (not minimum) value for the time step in DEM for stability (of
the explicit integration scheme) reason.

I think the best method to define the time step in YADE simulations (in
order to get a value as close as possible from this maximum value) is to
use GlobalStiffnessTimeStepper [*] engine. You can use this engine with
Hertz contact model without any problem. The exact value of the time
step computed by GlobalStiffnessTimeStepper depends on many parameters,
see DEM literature and YADE doc.

Jerome


[*] https://yade-dem.org/doc/yade.wrapper.html?highlight=timestepper#yade.wrapper.GlobalStiffnessTimeStepper

-- 
You received this question notification because your team yade-users is
an answer contact for Yade.