Numerical simulation of blood pulsatile flow in a stenosed carotid artery using different rheological models

► Symmetrical stenoses in carotid artery under unsteady flows are investigated numerically. ► The rheology models, Newtonian and non-Newtonian viscosity models are studied. ► The effects of pulsation and stenosis intensity of the floe characteristic are discussed.. ► Recirculation regions with low shear rates appear during a cardiac cycle are considered.