Question #697195 on Yade changed: https://answers.launchpad.net/yade/+question/697195
Bruno Chareyre proposed the following answer: As the name suggests, PeriodicFlowEngine is for periodic (no-)boundary condition. So no it is not really a "boundary" value problem. It is a periodic field problem. flow.pressureForce=True will compute the drag forces (from both pressure and viscous stress) resulting from macroscopic sliding velocity between the two phases. The other flags are related to lubrication forces: short range pair interactions playing against the relative movement of particles. These forces were added on the top of the drag forces _after_ Catalano 2011. See [2,3] [2] https://link.springer.com/content/pdf/10.1007/s10035-015-0560-6.pdf [3] https://www.sciencedirect.com/science/article/pii/S0032591020305064 Bruno -- You received this question notification because your team yade-users is an answer contact for Yade. _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp