Experimenting With the Heart
Equations based on Hooke's Law model the geometry of the heart by representing muscle fibers as closed curves of different elasticities. The Navier-Stokes equations, which describe all fluid flows, model blood flow in and around the heart. The fact that the heart's shape is constantly changing, however, makes the equations especially hard to solve, and a precise solution to the equations can't be found. Approximate solutions are generated by computer.