Effects of Stenosis and Dilatation on Flow of Blood Mixed with Suspended Nanoparticles: A Study Using Homotopy Technique

Abstract The paper deals with a theoretical study on blood flow in stenosed segment of an artery, when is mixed nano-particles. Blood treated here as couple stress fluid. Stenosis known to impede and be the cause different cardiac diseases. Since arterial wall weakened due stenosis, it may lead dilatation /aneurysm. homotopy perturbation technique employed determine solution problem for case mild stenosis. Analytical expressions velocity, shear at wall, pressure drop, resistance are derived. impact physical constants impedance fluid examined by numerical simulation. Streamline patterns nanofluid investigated situations.