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Journal of Enhanced Heat Transfer
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ISSN Imprimer: 1065-5131
ISSN En ligne: 1026-5511

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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v17.i4.60
pages 353-368

Numerical Behavior of Mixed Convection in a 2D Channel with a Co-Flowing Fluid Injection from a Flat Nozzle

Ameni Mokni
Unité de Thermique et Environnement, Ecole Nationale d'Ingénieurs de Monastir, Route de Ouardanine 5000, MONASTIR, TUNISIE
Hatem Mhiri
Unité de Thermique et Environnement, Ecole Nationale d'Ingénieurs de Monastir, Route de Ouardanine 5000, MONASTIR, TUNISIE
Georges Le Palec
Philippe Bournot
IUSTI UMR CNRS 6595, Technopole de Chateau-Gombert, 5 rue Enrico Fermi, 13013 Marseille Cedex 20 - France

RÉSUMÉ

In this paper, a numerical investigation which concerns a mixed convection flow in a two-dimensional vertical heated channel is performed. This flow results from the mixing of the up-going fluid along the channel walls with the one issued from a flat nozzle located at its entry section. The system of governing equations is solved with the finite volume method together with an implicit scheme. The obtained results prove the activation of heat transfer by the combined effect of turbulence and jet-wall interactions. This activation is also realized by the drive of ambient air by the jet.


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