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Re: time step with viscous damping

 

Hi,

Choosing an appropriate time step requires a certain expertise. Maybe a good reference could be the book of Allen and Tildesley (?) Keep in mind that the smallest time step depends also on the integration scheme. For instance, bigger time step can be used with velocity Verlet,Runge-Kutta or Beemans schemes when compared with leap-frog used in yade (I'm not sure about what I say).

For a given integration scheme, let say that the critical time step determined for non-viscous contact will be smaller that the effectively minimum time step... Not sure it helps!

Vincent

Le 22 févr. 2011 à 18:12, Chiara Modenese a écrit :

> Hi guys,
> 
> I think we should introduce a limit to the time step for contact models using viscous damping. Would you have a good reference about that apart from PFC manual? Also would the GlobalStiffnessTimeStepper engine be a good place for such an introduction?
> 
> Chiara
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