Computational study of the pulsatile EMHD Sutterby nanofluid flow of blood through an inclined tapered porous artery having overlapping stenosis with body acceleration and slip effects

Abstract

In recent years, the examination of blood flow in diseased arteries has been an essential field of research. Atherosclerosis is one of the most common arterial diseases, usually known as stenosis. The current work investigates the combination impact of electric and magnetic fields of the unsteady, two-dimensional and laminar pulsatile non-Newtonian flow of blood in an axisymmetrically inclined tapered porous stenotic artery containing gold nanoparticles with different shapes subject to body acceleration and slip effect at the wall. Heat source and thermal radiation are also considered. The phenomenon of the imposed electric field is described by the Poisson–Boltzmann equation. To immobilize the effect of the vessel wall, a transformation of the radial coordinates is used. The adoption of gold nanoparticles as nanomaterials for drug delivery is mainly due to their stability, inert nature, absence of cytotoxicity, high disparity and biocompatibility. An explicit scheme of finite differences is employed for solving the nonlinear partial differential equations that govern the current problem, as well as the prescribed boundary conditions. The applied magnetic and electric fields have significant effects on the flow field and heat transfer.