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Mathematical Problems in Engineering
Volume 2012, Article ID 485418, 15 pages
Research Article

Mixed Convection Flow over an Unsteady Stretching Surface in a Porous Medium with Heat Source

1Department of Mathematics, COMSATS Institute of Information Technology, Park Road, Chak Shahzad, Islamabad 44000, Pakistan
2Department of Mathematics, King Abdulaziz University, Jeddah 80200, Saudi Arabia

Received 27 March 2012; Revised 22 September 2012; Accepted 26 September 2012

Academic Editor: Trung Nguyen Thoi

Copyright © 2012 Syed Muhammad Imran 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.


This paper deals with the analysis of an unsteady mixed convection flow of a fluid saturated porous medium adjacent to heated/cooled semi-infinite stretching vertical sheet in the presence of heat source. The unsteadiness in the flow is caused by continuous stretching of the sheet and continuous increase in the surface temperature. We present the analytical and numerical solutions of the problem. The effects of emerging parameters on field quantities are examined and discussed.