CONTRIBUTION A LA DETERMINATION DE LA PRODUCTION D’ENTROPIE DANS L’AIR EN CONVECTION NATURELLE DANS UNE CAVITE CARREE SOUMISE A UN CHAMP MAGNETIQUE

EL JERY, Atef (2011) CONTRIBUTION A LA DETERMINATION DE LA PRODUCTION D’ENTROPIE DANS L’AIR EN CONVECTION NATURELLE DANS UNE CAVITE CARREE SOUMISE A UN CHAMP MAGNETIQUE. PhD thesis, National Engineering School of Gabes.

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1 PAGE DE GARDE.pdf

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2 Remerciements.pdf

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5 Nomenclature.pdf

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3 Résumé.pdf

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4 Sommaire.pdf

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6 Introduction générale.pdf

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7 Chapitre I.pdf

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8 Chapitre II.pdf

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9 Chapitre III.pdf

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10 Conclusion générale.pdf

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11 Références bibliographiques.pdf

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12 Annexe I.pdf

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13 Annexe II.pdf

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14 Annexe III.pdf

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15 Couverture.pdf

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Abstract

This work is a contribution to study the irreversibilities by using a numerical resolution of the conservative equations of continuity, momentum and energy to see the influence of a magnetic field on flow structure and entropy generation for the case of a fluid confined in a square cavity in natural convection. Study is carried on in steady–unsteady states. It was shown the important role of the magnetic field on velocity and temperature fields, heat transfer and entropy generation. As a consequence, magnetic field can play the role of control mechanism of the flows in industrial processes. In the stationary state study, it could be noticed that the heat transfer and the entropy generation depend considerably on Grashof and Hartmann numbers, the inclination angle of the magnetic field and the irreversibility coefficient. The fluid movement is intensively removed and the total entropy generation is largely decrease by the presence of a high magnetic field, which finally induces an evolution of the system towards a conductive state...

Item Type: Thesis (PhD)
Subjects: Chemical Engineering
Divisions: College Of Engineering > Chemical Engineering
Depositing User: Dr. Atef EL JERY
Date Deposited: 28 Sep 2017 06:15
Last Modified: 28 Sep 2017 06:15
URI: http://eprints.kku.edu.sa/id/eprint/1028

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