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Trends in Chemical Engineering   Volumes    Volume 13 
Effects of chemical reaction, viscous dissipation and pressure work on MHD free convection flow in a porous medium
Abdelraheem Mahmoud Aly, Mohammed Ahmed Mansour, Rama Subba Reddy Gorla
Pages: 65 - 76
Number of pages: 12
Trends in Chemical Engineering
Volume 13 

Copyright © 2010 Research Trends. All rights reserved

The effects of chemical reaction, viscous dissipation and pressure work are included in a three-parameter perturbation analysis in magnetohydrodynamic free convection flows of Newtonian fluid-saturated porous medium. The Rosseland approximation is used to describe the radiative heat flux in the energy equation. Four different cases of flows have been studied namely an isothermal surface, a uniform surface heat flux, a plane plume and flow generated from a horizontal line energy source along a vertical adiabatic surface. Numerical results are presented for the perturbation analysis for the four boundary conditions. The obtained results are compared and a representative set is displayed graphically to illustrate the influence of the parameters on the velocity, temperature and concentration.
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