Mass Transport in Pulsatile Blood Flow with intermittency through a Stenosed Aorta

Abstract

It is pointed out that mass transport in an artery, such as LDL transport, influences the progression of stenosis severely. Mass transport in pulsatile blood flow, which has intermittent time, through an stenosed aorta is analyzed numerically. Flow is assumed to be periodic and axisymmetric. Non-Newtonian viscosity of blood and movement of arterial wall are considered. The effect of inter-mittency, pulsation and wall movement on mass transport is investigated. Flow pattern, concentration pattern and distribution of concentration on the wall are obtained. It is found that the instantaneous mass flux on the wall is dominated by the apparent St number using angular velocity of unsteady time. However, time-mean mass flux is influenced by the intermittent time. The flow intermittency contributes to smoothing the concentration distribution and decreasing the time mean mass flux on the wall.