Majid Ghassemi
KNT University of Technology, Iran
Title: Numerical investigation of wall elasticity effects on blood flow and low density lipoprotein mass transfer in carotid bifurcation
Biography
Biography: Majid Ghassemi
Abstract
In modern countries cardiovascular diseases are one of the most prevalent death reasons, among which atherosclerosis is the most common one. Depending on atherosclerosis plaque formation locations, Temporary Ischemic Attack (TIA) and heart or brain stroke may occur. It seems wall motion plays a major role in alteration of flow and Low Density Lipoprotein (LDL) accumulation. The purpose of the current study is to investigate the wall elasticity effects on flow and LDL mass transfer inside the carotid bifurcation. So the carotid bifurcation artery modeled as solid, linear elastic and Rubber-Like material (Mooney-Rivlin). The blood is modeled as Carreau fluid and a pulsatile flow applied as Common Carotid Artery (CCA) inlet. Also Fluid Structure Interaction (FSI) transient analysis is performed. The wall elasticity effects on the flow are presented in three-time steps; early systole, end systole and end diastole. Results show that linear elastic and rubber-like models, predict very similar blood flow fields however wall behavior is different in each model. Results show for large arteries like carotid bifurcation, solid wall model is not adequate , Rubber-Like model (Mooney-Rivlin) are the best arterial wall model and linear wall elastic model is in second place.