Still Standing Water Moving Unphysically
I have a small 3d case in which a cylinder is submerged in a small pool of water, where for some reason the water particles at the cylinder surface start to accelerate extremely and generate a high velocity. See picture:
This is of course very unphysical, but I am not understanding why it happens. I have a rather fine dp = 0.01, which gives roughly half a million particles, which should be more than enough for such a case. There is no initial velocity for the water what so ever, the only force existing in the domain is the gravity set to -9.81.
Has anyone simulated a similar case with no issues, if so could you share your case?