Turbulent flow field analysis of the mechanical prosthetic valves using time resolved PIV system

Abstract

Two typical mechanical heart vales (the St. Jude Medical and the Jyros valves) have been tested in the mitral position under pulsatile flow condition. The test program included measurements of velocity turbulent flow stress and turbulent intensity. The study was carried out using a sophisticated cardiac simulator in conjunction with a high resolution time resolved-Particle Image Velocimetry system.