ABSTRACT
The flow in the left atrium-ventricle system has been numerically investigated by assuming the blood as an inviscid incompressible fluid. The geometry is taken as axisymmetrical around the ventricle axis and the motion of the heart walls is given. The massive separation from the mitral valve is described in terms of a standard Kutta condition, by producing filaments at the separation line. The motion of the valves, forced by pressure and elastic forces, is integrated during the cardiac cycle.
Preliminary results have been discussed in the diastole, with the aim to understand the influence of the motion of the heart walls on the time history of pressure and velocity fields and the resulting dynamics of the mitral valve.
