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Entropy 2011, 13(12), 1992-2012; doi:10.3390/e13121992

Effects of Radiation Heat Transfer on Entropy Generation at Thermosolutal Convection in a Square Cavity Subjected to a Magnetic Field

1
Chemical and Process Engineering Department, Engineers National School of Gabès, Gabès University, Omar Ibn El Khattab Street, Gabès 6029, Tunisia
2
Civil Engineering Department, High Institute of Applied Sciences and Technology, Gabès University, Omar Ibn El Khattab Street, Gabès 6029, Tunisia
*
Author to whom correspondence should be addressed.
Received: 1 June 2011 / Revised: 27 June 2011 / Accepted: 21 July 2011 / Published: 28 November 2011
(This article belongs to the Special Issue Entropy Generation Minimization)
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Abstract

Thermosolutal convection in a square cavity filled with a binary perfect gas mixture and submitted to an oriented magnetic field taking into account the effect of radiation heat transfer is numerically investigated. The cavity is heated and cooled along the active walls whereas the two other walls are adiabatic and insulated. Entropy generation due to heat and mass transfer, fluid friction and magnetic effect has been determined for laminar flow by solving numerically: The continuity, momentum energy and mass balance equations, using a Control Volume Finite-Element Method. The structure of the studied flows depends on five dimensionless parameters which are: The Grashof number, the buoyancy ratio, the Hartman number, the inclination angle of the magnetic field and the radiation parameter. View Full-Text
Keywords: thermosolutal convection; square cavity; entropy generation; magnetic effect; radiation parameter thermosolutal convection; square cavity; entropy generation; magnetic effect; radiation parameter
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Hidouri, N.; Bouabid, M.; Magherbi, M.; Brahim, A.B. Effects of Radiation Heat Transfer on Entropy Generation at Thermosolutal Convection in a Square Cavity Subjected to a Magnetic Field. Entropy 2011, 13, 1992-2012.

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