12-05-2022, 01:55 PM
(This post was last modified: 12-05-2022, 05:00 PM by josemendez.)
(12-05-2022, 01:38 PM)locque Wrote: The container is 1 Kg, particle mass is is 0.0013Kg with a rest density of 100. I tried increasing rest density step by step up to a particle mass of 0.5 Kg, that does not make any difference either.
Are you sure this is related only to friction and not stickiness? The problem completely disappears as soon as you set stickiness to 0, even with dynamic and static friction at high levels.
Stickiness is only applied in the direction normal to the surface, it cannot make particles move tangentially to the surface of the object by itself. However, stickiness will increase the normal force since it pushes particles against the surface, so frictional forces will become much larger since they're proportional to the magnitude of the normal force.
One experiment you can do to tell for sure if friction is to blame is to make the container non-kinematic, but do not move it using joints or external forces. If fluid keeps crawling around, then my assumption is wrong and we should look somewhere else. If fluid only crawls around when the container's velocity is non-zero then something is messing with the container's velocity after the fluid simulation is performed.