Abstract
In this study, we aim to simulate blood flow in left ventricle. As a fundamental study, we make the simulation model of displacement pump whose capacity is changed in a cycle and simulate the internal flow using 2-dimentional Navier-Stokes equations and virtual flux method. We simulate three types of the pump, one is symmetric and the others are asymmetric. First, we validate mass conservation in terms of flow rate in all cases. Next, we discuss the influence of asymmetry of the models on internal flow. We find that velocity profile near the outlet and wall share stress on the outlet walls are strongly affected by the asymmetry.
