Table of Contents
ISRN Thermodynamics
Volume 2013 (2013), Article ID 953536, 17 pages
http://dx.doi.org/10.1155/2013/953536
Research Article

Influence of Variable Permeability and Radiation Absorption on Heat and Mass Transfer in MHD Micropolar Flow over a Vertical Moving Porous Plate

1Department of Humanities and Basic Science, SVPCET, Puttur 517 583, India
2Department of Mathematics, VIT University, Vellore 632 014, India

Received 28 September 2012; Accepted 22 November 2012

Academic Editors: C. D. Daub, H. Hirao, D. E. Khoshtariya, and Z. Xu

Copyright © 2013 D. Harish Babu and P. V. Satya Narayana. 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

An analysis of unsteady free convection with heat and mass transfer flow for a micropolar fluid through a porous medium with a variable permeability bounded by a semi-infinite vertical plate in the presence of heat generation, thermal radiation, first-order chemical reaction, and the radiation absorption is reported. The plate is assumed to move with a constant velocity in the direction of fluid flow. A uniform magnetic field acts perpendicular to the porous surface which absorbs micropolar fluid with a suction velocity varying with time. The dimensionless governing equations for this investigation are solved analytically using two-term harmonic and nonharmonic functions. To observe physical insight and interesting aspects of the problem, the velocity, angular velocity, temperature, and concentration field are numerically studied and displayed graphically for pertinent parameters.