Abstract
This problem deals with the theoretical study of nano fluid flow through composite stenosed arteries with permeable walls. The highly non linear momentum equations of nano fluid model are simplified by considering the mild stenosis case. The solutions for concentration and temperature are found by using homotopy perturbation method (HPM) while exact solution for velocity profile is calculated. Moreover the expressions for flow impedance, pressure rise and stream function are computed and discussed through graphs for different physical quantities of interest. (C) 2014 Elsevier Masson SAS. All rights reserved.