Nano fluid flow in tapering stenosed arteries with permeable walls

• Theoretical study of blood flow of nano fluid through composite stenosed arteries with permeable walls is discussed.
• 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).
• Exact solution for velocity profile is calculated.
• The expressions for flow impedance, pressure rise and stream function are computed.

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.