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Mathematical Problems in Engineering
Volume 2013, Article ID 670205, 8 pages
http://dx.doi.org/10.1155/2013/670205
Research Article

A New Numerical Approach of MHD Flow with Heat and Mass Transfer for the UCM Fluid over a Stretching Surface in the Presence of Thermal Radiation

1Department of Mathematics, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa
2Department of Mathematics, University of Swaziland, Private Bag 4, Kwaluseni, Swaziland

Received 18 March 2013; Accepted 13 August 2013

Academic Editor: Tirivanhu Chinyoka

Copyright © 2013 S. Shateyi and G. T. Marewo. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper numerically investigates the magnetohydrodynamic boundary layer flow with heat and mass transfer of an incompressible upper-convected Maxwell fluid over a stretching sheet in the presence of viscous dissipation and thermal radiation as well as chemical reaction. The governing partial differential equations are transformed into a system of ordinary differential equations by using suitable similarity transformations. The resultant highly nonlinear ordinary differential equations are then solved using spectral relaxation method. The results are obtained for velocity, temperature, concentration, skin friction, and Nusselt number. The effects of various material parameters on the flow with heat and mass transfer and the dimensionless variables are illustrated graphically and briefly discussed.