Design and Simulation of Blood Flow to Obtain Optimum Angle and The Effect of Magnetic Fields on Blood Circulation in Femoral Artery Bypass Surgery

Abstract

Thrombosis is a common disease among communities and considered as one of the main causes of death in developed countries. Because of major role of blood parameters in the creation and development of this disease and methods of bypass graft to treat it, understanding that how the blood function in vessels is important. In this study, a constant flow of blood to the femoral pulse using the assumption of non-Newtonian fluid and rigid-wall vessels with bypass linked with angles of 30, 45 and 60 degrees and the percentage of stenosis 40, 70 and 100% of the simulation. The results showed that the use of bypass in the vessel containing the stenosis, will reduce average shear stress exerted on the main artery and bypass the angle ° 45 is the best performance of the other angles. Also the effect of the magnetic field and gravity as the wall shear stress was investigated. The results show that an increase in Hartmann number can increase average of pressure, also by applying a magnetic field velocity profile to be flatter and increase the velocity gradient increases shear stress near the wall.