CFD Analysis of Bifurcated Human Carotid Artery: Newtonian Approach

Abstract

Cardiovascular system of human body is an important network since it provides ingredients like oxygen, carbon di oxide, hormones etc. to the individual cells throughout the human body. In the current study, a bifurcated human carotid artery is our point of interest. Blood has been considered as Newtonian fluid in the simulation. Finite Volume Method (FVM) based on Navier-Stokes equation is used to analyze the flow inside the artery. Ansys-FLUENT is used to conduct numerous simulations to find out different effects on bifurcated artery. Three models based on different bifurcation angle have been developed. Velocity contour at different timescale of a cardiac cycle has been studied. All three models have been used to find out the velocity distribution at SS3 and EC2 planes. The pressure distribution has also been studied as well. Wall shear stress (WSS) for Model 2 has been analyzed. For all the simulations 70:30 flow division has been used. Hence, 70% of the total blood flows through the Internal Carotid Artery (ICA) and 30% flow occurs through the External Carotid Artery (ECA).