Question #175394 on Yade changed: https://answers.launchpad.net/yade/+question/175394
Chiara Modenese proposed the following answer: On 29 November 2011 10:05, Christian Jakob < [email protected]> wrote: > Question #175394 on Yade changed: > https://answers.launchpad.net/yade/+question/175394 > > Christian Jakob posted a new comment: > Ok, i will create a smaller example to figure out the differences. > I do remember that you already checked the Hertz law in Yade and PFC (and the solution was the same). You could you use that same script just adding the viscous force. Please, make sure you understand what the contact model is doing in both codes. > > @chiara > > i looked into PFC manual, but i could not find anything reffered to time > step determination in the case when viscous damping is active. there is > just a definition of critical time step determination with t_{crit} = > \sqrt{\frac{m}{k}} > I am 100% sure there is a modification but I do not have the manual with me now. As Bruno said, it should not matter provided that the contact model acts the same way. However, it is good for you to understand/know how/why the time step should be reduced in case of viscous contact damping. Chiara > > -- > You received this question notification because you are a member of > yade-users, which is an answer contact for Yade. > > _______________________________________________ > Mailing list: https://launchpad.net/~yade-users > Post to : [email protected] > Unsubscribe : https://launchpad.net/~yade-users > More help : https://help.launchpad.net/ListHelp > -- You received this question notification because you are a member of yade-users, which is an answer contact for Yade. _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
