TRANSIENT THERMAL AND VISCOUS IRREVERSIBILITIES THROUGH A POISEUILLE-BENARD CHANNEL IN PRESENCE OF A MAGNETIC FIELD

Nejib  Hidouri; Ammar  Ben Brahim

doi:10.1615/ICHMT.2009.CONV.550

CONV-09. Proceedings of International Symposium on Convective Heat and Mass Transfer in Sustainable Energy

April 26 - May 1, 2009, Hammamet, Tunisia

DOI: 10.1615/ICHMT.2009.CONV

ISBN Print: 978-1-56700-261-4

ISSN Online: 2642-3499

ISSN Flash Drive: 2642-3502

TRANSIENT THERMAL AND VISCOUS IRREVERSIBILITIES THROUGH A POISEUILLE-BENARD CHANNEL IN PRESENCE OF A MAGNETIC FIELD

page 7

DOI: 10.1615/ICHMT.2009.CONV.550

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Nejib Hidouri
Gabès University, Chemical and Process Engineering Department, Engineers National School of Gabès, Applied Thermodynamics Unit, Tunisia

Ammar Ben Brahim
Ecole Nationale d’Ingénieurs de Gabès, Rue Omar Ibn El Khattab, 6029 Gabès, Tunisia, Département de Génie Chimique Procédés, Unité de Recherche : Thermodynamique Appliquée

RÉSUMÉ

The influence of an external magnetic field on transient thermal and viscous irreversibilities in Poiseuille-Benard channel for the laminar flow of an incompressible electrically conducting fluid is numerically investigated by solving the mass, momentum and energy conservation equations. Numerical simulation was performed for Reynolds number (Re) equal to 10 and an irreversibility distribution ratio (φ) equal to 0.1. The Stuart number (N) that describes the magnetic field effect, ranges between 0 and 10. Rayleigh and Prandtl numbers are fixed respectively at 10⁴ and 0.71.

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