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International Journal of Chemical Engineering
Volume 2013 (2013), Article ID 310273, 4 pages
http://dx.doi.org/10.1155/2013/310273
Research Article

Flow Reversal of Fully Developed Mixed Convection in a Vertical Channel with Chemical Reaction

1School of Mathematical Sciences, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
2Solar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
3Mathematics Sciences, UIN Sultan Syarif Kasim Riau, Panam, Pekanbaru 28293, Indonesia

Received 12 March 2013; Accepted 21 April 2013

Academic Editor: Donald L. Feke

Copyright © 2013 Habibis Saleh 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 present analysis is concerned with the criteria for the onset of flow reversal of the fully developed mixed convection in a vertical channel under the effect of the chemical reaction. The governing equations and the critical values of the buoyancy force are solved and calculated numerically via MAPLE. Parameter zones for the occurrence of reversed flow are presented. The exothermic chemical reaction is found to enhance the flow reversal and made flow reversal possible for symmetrical walls temperature.