TY - JOUR
TI - Effects of heat source/sink on magnetohydrodynamic flow and heat transfer of a non-Newtonian power-law fluid on a stretching surface
AU - Naikoti Kishan
AU - Pagdipelli Kavitha
JN - Thermal Science
PY - 2016
VL - 20
IS - 6
SP - 1801
EP - 1811
PT - Article
AB - Non-Newtonian boundary layer flow and heat transfer characteristics over a  stretching surface with thermal radiation and slip condition at the surface  is analyzed. The flow is subject to a uniform transverse magnetic field. The  suitable local similarity transformations are used to transform the  non-linear partial differential equations into system of ordinary  differential equations. The non-linear ordinary differential equations are  linearized by using Quasi-linearization technique. The implicit finite  difference scheme has been adopted to solve the obtained coupled ordinary  differential equations. The important finding in this communication is the  combined effects of Magnetic field parameter M, power law index n, slip  parameter l, radiation parameter R, surface temperature parameter g , heat  source/sink parameter S, local Eckert number Ec, temperature difference  parameter r, generalized local Prandtl number Pr on velocity and temperature  profiles and also the skin-friction coefficient -f''(0)and heat transfer  coefficient -θ'(0) results are discussed. The results pertaining to the  present study indicate that as the increase of magnetic field parameter, slip  parameter decreases the velocity profiles, where as the temperature profiles  increases for both Newtonian and non-Newtonian fluids. The power law index n  and heat source/sink parameter decreases the dimensionless velocity and  temperature profiles. The effect of radiation parameter, Eckert number leads  to increase the dimensionless temperature. It is found that increasing the  slip parameter has the effect of decreasing the skin-friction  coefficient-f''(0)and heat transfer coefficient-θ'(0).With the increase of  power law index n is to reduce the skin-friction coefficient and increase the  heat transfer coefficient.