I'm running a case with moving boundaries and a floating body.
Initially the system looks like this
After some time dt the floating moves in the fluid domain
Once it reaches one of the moving boundaries, it sticks to that boundary and moves with it for some time
Eventually, I'm assuming it loses particles and to make up for it it gets bigger in volume since I'm using massbody.
I don't really know what's happening and why. How do floatings interact with boundaries?