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Heat Transfer Research
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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2012003418
pages 557-569

Thermal Plume in a Vertical Channel: Effect of the Source−Channel Vertical Spacing

Jouini Belgacem
LETTM, Faculte Sciences de Tunis Campus Universitaire, 1060 Tunis, TUNISIE
Mourad Bouterra
LETTM, Faculte Sciences de Tunis Campus Universitaire, 1060 Tunis, TUNISIE
Olivier Vauquelin
IUSTI, UMR CNRS 6595, Technopole de chateau Gombert,Marseille, FRANCE
Mohamed Afif El Cafsi
LETTM, Faculte Sciences de Tunis Campus Universitaire, 1060 Tunis, TUNISIE
Ali Belghith
Faculte des Sciences de Tunis, Laboratoire des Transferts de Chaleur et de Masse, Campus Universitaire, 1060 Tunis, Tunisia
Philippe Bornot
IUSTI, UMR CNRS 6595, Technopole de chateau Gombert,Marseille, FRANCE

ABSTRACT

This paper presents the results of a numerical study of the problem on turbulent convection in a vertical channel located above a rectangular heat source. The hot source is heated to a temperature Ts. The inner walls of the channel chain are heated (to a temperature Tp) following the issuance of thermal radiation from the hot source. In this study, we used the commercial software (CFD), Fluent, constructing an averaged standard κ−ε model. This software is based on the use of the finite volume method. The work involves a comparison between the numerical results with those of experience in literature. The comparison gives good agreement between the two results. We studied the effect of the source-channel spacing position by setting the source position relative to the channel in the vertical direction. We are also interested in the effect of the source-channel spacing of the recirculation zone formed above the heat source.


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