I have a small simulation following the movement of an oar on a boat. The flip container inherits the motion from the movement of the tank, and sends waves towards my oar. I want my sim to be able to stay still, despite the container moving. Is this possible? Can we remove the inherited velocity from the movement of the tank?

Figured out the problem. Because my flip sim was so narrow, velocity being pumped in out the boundary layer gained velocity from the gravity force, which pushed the flip towards the bottom of the tank and bounced it up again, creating waves. Disabling velocity eliminated the problem, as well as reducing the gravity heavily (from -9 to -1). So, it appears that the flip container did not inherit velocity from the movement of the tank, but rather from this weird gravity interaction with the boundary layer. SOLVED