Numerical Simulation Of Non-Newtonian Spiral Flow Through Stenosed Artery With 75o/o And 96'/, Area Reductions

Abstract

Bloocl ./low through arterial stenosis can play important role in blood t;essel,s and it is a vety complex Jlow as blood is a non-newtonian fluid. In the present study, the Carreau model has been userl tofincl out the characteristics of bloodflow through a regular stenosis. The fficts of Reynolds number (Re) on Non-l{ewtonian flow through a 3D model of a biological type arterial ,stenosis is sttLclied. The shape of the stenosis has been varied. Here, stenosis with 96% and 7 5ok area reduction have been used. The standard k-a model is used for ,simulation of blood Jlow for four Reynolds numbers (Re = 500, 1000, 1500, 2000). Some numerical results such cts velocity profile, pressure .field, streamline, wall shear stress (WSS), turbulent kinetic energy (TKE) etc. are examined.for clffirent spiral velocities at dffirent Reynolds numbers. Details investigation and significant pathological issues are described throughout the investigation.