Table of Contents
Journal of Computational Methods in Physics
Volume 2013 (2013), Article ID 180516, 11 pages
http://dx.doi.org/10.1155/2013/180516
Research Article

MHD-Conjugate Free Convection from an Isothermal Horizontal Circular Cylinder with Joule Heating and Heat Generation

1School of Business Studies, Southeast University, House-64, Road-18, Block-B, Banani, Dhaka 1213, Bangladesh
2Department of Mathematics, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh

Received 31 March 2013; Revised 27 July 2013; Accepted 15 August 2013

Academic Editor: Ivan D. Rukhlenko

Copyright © 2013 NHM. A. Azim and M. K. Chowdhury. 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 present work is devoted to the numerical study of laminar magnetohydrodynamic (MHD) conjugate natural convection flow from a horizontal circular cylinder taking into account Joule heating and internal heat generation. The governing equations and the associated boundary conditions for this analysis are made nondimensional forms using a set of dimensionless variables. Thus, the nondimensional governing equations are solved numerically using finite difference method with Keller box scheme. Numerical outcomes are found for different values of the magnetic parameter, conjugate conduction parameter, Prandtl number, Joule heating parameter, and heat generation parameter for the velocity and the temperature within the boundary layer as well as the skin friction coefficients and the rate of heat transfer along the surface. It is found that the skin friction increases, and heat transfer rate decreases for escalating value of Joule heating parameter and heat generation parameter. Results are presented graphically with detailed discussion.