MHD axisymmetric flow and heat transfer of power law fluid over an unsteady porous stretching sheet

Abstract

This paper deals with the boundary layer flow and heat transfer of power law fluid over an unsteady radially stretching sheet. By using the similarity transformation, the governing nonlinear boundary layer equations are transformed into nonlinear ordinary differential equation. These ordinary differential equations are then solved numerically by using BVP4C in MATLAB. The effects of different physical parameters like power law index n, unsteadiness parameter A, magnetic parameter M, on the temperature profiles and velocity profiles as well as on the local skin friction coefficient and local Nusselt numbers are analyzed and discussed.
Key Words: Axisymetric flow, power law fluid, unsteady stretching.