Mathematical Problems in Engineering
Volume 2009 (2009), Article ID 758046, 12 pages
doi:10.1155/2009/758046
Research Article

Transient MHD Double-Diffusive Natural Convection over a Vertical Surface Embedded in a Non-Darcy Porous Medium

Mohammed Q. Al-Odat,1 Tariq A. Al-Azab,2 M. Al-Hasan,3 and B. A. Shannak1

1Mechanical Engineering Department, Al-Huson University College, Al-Balqa Applied University, P.O. Box 21510, Irbid, Jordan
2Mechanical Engineering Department, Al-Salt Community College, Al-Balqa Applied University, Al-Salt 19117, Jordan
3Mechanical Engineering Department, Faculty of Engineering and Technology, Al-Balqa Applied University, P.O. Box 340558, Amman 11134, Jordan

Received 18 January 2009; Revised 4 August 2009; Accepted 12 November 2009

Academic Editor: Kumbakonam R. Rajagopal

Copyright © 2009 Mohammed Q. Al-Odat 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

The problem of transient, laminar, MHD double-diffusive free convection over a permeable vertical plate embedded in Darcy and non-Darcy porous medium is numerically investigated. Nonsimilarity solutions are obtained for constant wall temperature and concentration with a specified power law of mass flux parameter. The effects of the magnetic parameter, the inertial coefficient, Lewis number, the buoyancy ratio, and the lateral mass flux on heat and mass transfer coefficients are presented and discussed.