Journal of Applied Mathematics
Volume 2012 (2012), Article ID 491695, 8 pages
Research Article

Mixed Convection Flow along a Stretching Cylinder in a Thermally Stratified Medium

1Department of Mathematics, The University of Burdwan, Burdwan 713104, India
2School of Mathematical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Malaysia

Received 15 February 2012; Accepted 22 November 2012

Academic Editor: Subhas Abel

Copyright © 2012 Swati Mukhopadhyay and Anuar Ishak. 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.


An analysis for the axisymmetric laminar boundary layer mixed convection flow of a viscous and incompressible fluid towards a stretching cylinder immersed in a thermally stratified medium is presented in this paper. Similarity transformation is employed to convert the governing partial differential equations into highly nonlinear ordinary differential equations. Numerical solutions of these equations are obtained by a shooting method. It is found that the heat transfer rate at the surface is lower for flow in a thermally stratified medium compared to that of an unstratified medium. Moreover, both the skin friction coefficient and the heat transfer rate at the surface are larger for a cylinder compared to that for a flat plate.