Numerical Simulation of Generalized Power Law Blood Flow Model Through Different Angles of Stenosed Bifurcated Artery

Abstract

Atherosclerosis is a key occurrence in cardiovascular disease and is the leading cause of
death for people worldwide. Atherosclerosis is the narrowing of lumen as a result of plaque
deposition which is known as stenosis. Therefore, arteries become constricted as the stenosis
continues to enlarge. These conditions will disturb blood flow where the eddies and separation of
streamlines near the vessel wall are formed. The study of numerical simulation of generalized power
law for non-newtonion model through different angles of a bifurcated artery is considered in this
paper. Realizing that the characteristics of blood influence vascular disease, this study was
conducted to acquire knowledge on blood flow characteristics such as velocity profile, pressure
drop, streamlines and wall shear stress on different angles of stenosed bifurcated artery. Angles of
stenosed bifurcated arteries were divided into three: β=150, β=300, and β=600; to study the effect of
different angles of stenosed bifurcated artery through a single stenosis. Results were obtained using
COMSOL Multiphysics 5.2 which was based on finite element method in two-dimensional (2D)
blood flow model in the presence of single stenosis with different angles of stenosed bifurcated
artery.