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Entropy 2011, 13(5), 1034-1054; doi:10.3390/e13051034
Article

Analysis of the Magnetic Field Effect on Entropy Generation at Thermosolutal Convection in a Square Cavity

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Received: 10 February 2011; in revised form: 5 April 2011 / Accepted: 19 April 2011 / Published: 23 May 2011
(This article belongs to the Special Issue Entropy Generation Minimization)
Download PDF [2100 KB, uploaded 23 May 2011]
Abstract: Thermosolutal convection in a square cavity filled with air and submitted to an inclined magnetic field is investigated numerically. The cavity is heated and cooled along the active walls with a mass gradient whereas the two other walls of the cavity are adiabatic and insulated. Entropy generation due to heat and mass transfer, fluid friction and magnetic effect has been determined in transient state 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 four dimensionless parameters which are the Grashof number, the buoyancy ratio, the Hartman number and the inclination angle. The results show that the magnetic field parameter has a retarding effect on the flow in the cavity and this lead to a decrease of entropy generation, Temperature and concentration decrease with increasing value of the magnetic field parameter.
Keywords: double diffusive convection; square cavity; entropy generation; magnetic effect double diffusive convection; square cavity; entropy generation; magnetic effect
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.

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MDPI and ACS Style

Bouabid, M.; Hidouri, N.; Magherbi, M.; Brahim, A.B. Analysis of the Magnetic Field Effect on Entropy Generation at Thermosolutal Convection in a Square Cavity. Entropy 2011, 13, 1034-1054.

AMA Style

Bouabid M, Hidouri N, Magherbi M, Brahim AB. Analysis of the Magnetic Field Effect on Entropy Generation at Thermosolutal Convection in a Square Cavity. Entropy. 2011; 13(5):1034-1054.

Chicago/Turabian Style

Bouabid, Mounir; Hidouri, Nejib; Magherbi, Mourad; Brahim, Ammar Ben. 2011. "Analysis of the Magnetic Field Effect on Entropy Generation at Thermosolutal Convection in a Square Cavity." Entropy 13, no. 5: 1034-1054.


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