This animation shows the interaction of two point vortices (small red dots with red and cyan traces) of strenths 2 and -1, respectively, with a slightly elliptic rigid body moving freely in an unbounded 2D ideal fluid.
Also shown is a small blob of passively advected fluid particles colored black for visualization. The chaotic nature of the system is apparent from the traces of the vortices, body and particles.
We want to see what happens next!
teisole 1 year ago