Question #165417 on Yade changed: https://answers.launchpad.net/yade/+question/165417
Christian Jakob posted a new comment: > Hi Christian, > Do you know published references about this limitation to 10-20 > particles per cell minimum? I heard that many times but couldn't find > anything precise (Feng Chen maybe?). PFC3D - CCFD Add-On manual (2008) page 2-9 (practical considerations): "This coupling methodology is designed to describe the average coupling forces occuring within one fluid element. Flow around the particles is not explicitly represented, as the local porosity is assumed to be evenly distributed within one element. For good results, several particles should fit inside one CFD element: dx/(2*r) > 5 [eq. 2.19]" dx - fluid element length r - particle radius My personal experience with this code is to use better 50 to 100 particles (then 10-20) within each fluid element. I also only use so- called one-way-coupling. That means that only the fluid acts on the particles. I tried to use with full coupling, but after a few steps my model always explodes ... :o Christian. -- 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 : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp