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Page d'accueil ICHMT DL Année en cours Archives Comité de direction Centre international pour le transfert de chaleur et de masse


DOI: 10.1615/ICHMT.2009.CONV.490
9 pages

Colette Padet
University of Reims Champagne-Ardenne, GRESPI/Laboratoire de Thermomécanique, Faculté des Sciences PB1039, 51687 Reims, France

Emilia-Cerna Mladin
University Politehnica of Bucharest, Bd. Libertatii nr. 3, bloc A2, sc. A, ap. 17, Bucharest 040127, Romania

Alexandru Dobrovicescu
Politehnica University of Bucharest, Faculty of Mechanics and Mechatronics, Splaiul Independentei nr. 313, sector 6, 060042, Bucharest, Romania

Jacques Padet
Laboratoire de Thermomécanique - UTAP Moulin de la housse, Faculté des Sciences, Université de Reims Champagne Ardenne, B.P. 1039, 51687 Reims cedex 2, France


The present study refers to a fully developed thermal mixed convection between two vertical and infinite walls having imposed constant temperatures and for a given flow rate (or pressure gradient). Viscous dissipation and entropy production are successively estimated and then used to find an optimum distance between the plates which minimizes the total entropy production in the flow field. Results indicated that the definition of a entropy criteria to use between different convection regimes is more difficult to apply than a dissipation criteria.

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