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International Journal of Engineering Mathematics
Volume 2014, Article ID 565162, 7 pages
http://dx.doi.org/10.1155/2014/565162
Research Article

Aligned Magnetic Field, Radiation, and Rotation Effects on Unsteady Hydromagnetic Free Convection Flow Past an Impulsively Moving Vertical Plate in a Porous Medium

1Division of Fluid Dynamics, VIT University, Vellore 632 014, India
2Department of Mathematics, Sri Venkateswara University, Tirupati 517 502, India

Received 1 July 2014; Accepted 21 September 2014; Published 21 October 2014

Academic Editor: Alberto Cardona

Copyright © 2014 Sandeep Naramgari et al. 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

We analyse the effects of aligned magnetic field, radiation, and rotation on unsteady hydromagnetic free convection flow of a viscous incompressible electrically conducting fluid past an impulsively moving vertical plate in a porous medium in presence of heat source. An exact solution of the governing equations in dimensionless form is obtained by Laplace transform technique in ramped temperature case. To compare the results obtained in this case with that of isothermal plate, the exact solution of the governing equations is also obtained for isothermal plate and results are discussed graphically in both ramped temperature and isothermal cases.