Effect of chemical reaction on heat and mass transfer by mixed convection flow about a sphere in a saturated porous media
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 17 May 2011
Abstract
Purpose
The purpose of this paper is to study the effects of chemical reaction on mixed convection flow along a sphere in non‐Darcian porous media.
Design/methodology/approach
The sphere surface is maintained at uniform temperature and species concentration for both cases of heated (assisting flow) and cooled (opposing flow) sphere. An appropriate transformation is employed and the transformed equations are solved numerically using an efficient implicit iterative tri‐diagonal finite difference method.
Findings
It is found that chemical reactions have significant effect on heat and mass transfer. Comparisons with previously published work are performed and the results are found to be in excellent agreement.
Originality/value
The paper is original and describes how a parametric study of the physical parameters was conducted and illustrates graphically a representative set of numerical results for the velocity, temperature, and concentration profiles, as well as the local skin‐friction coefficient, local wall temperature, and local wall concentration, to show interesting features of the solutions.
Keywords
Citation
Rashad, A.M., Chamkha, A.J. and El‐Kabeir, S.M.M. (2011), "Effect of chemical reaction on heat and mass transfer by mixed convection flow about a sphere in a saturated porous media", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 21 No. 4, pp. 418-433. https://doi.org/10.1108/09615531111123092
Publisher
:Emerald Group Publishing Limited
Copyright © 2011, Emerald Group Publishing Limited