Investigation on the effect of stent in unsteady blood flow

摘要

In this work, we tried to determine the fact that an interest in optimal stents shapes helps to minimize fluid swirl and to maximize shear stress on the wall artery in order to reduce the risk of the restenosis in stented segments. Our study deals with three geometric parameters of the stent, namely the strut spacing, the strut heightand the strut width. These parameters have direct effect on blood flow. A multi-objective optimization based on genetic algorithm is used to determine an optimal stent.