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Journal of Porous Media
Facteur d'impact: 1.49 Facteur d'impact sur 5 ans: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimer: 1091-028X
ISSN En ligne: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v13.i11.90
pages 1025-1032

NONSIMILAR SOLUTIONS FOR MIXED CONVECTION OF WATER AT 4° C OVER A VERTICAL SURFACE WITH PRESCRIBED SURFACE HEAT FLUX IN A POROUS MEDIUM

Waqar A. Khan
Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1 Canada
Rama Subba Reddy Gorla
Department of Mechanical Engineering, Cleveland State University, Cleveland, OH, 44115 USA; Department of Mechanical Engineering, University of Akron, Akron, Ohio 44325, USA; Department of Mechanical & Civil Engineering, Purdue University Northwest, Westville, IN 46391, USA

RÉSUMÉ

In this study, the mixed convection of water at 4°C along a vertical plate with prescribed surface heat flux in a porous medium is investigated numerically using the implicit finite difference method. Nonsimilar solutions are obtained for both forced convection- and free convection-dominated regimes. The velocity and temperature profiles are shown to explain the flow as well as temperature variation as a function of controlling parameters. Skin friction and Nusselt number are obtained and compared with the available numerical results for various values of different parameters. Several values of the heat flux variation parameter λ and mixed convection parameter ξ, are considered for the purpose of comparison of skin friction and heat transfer results.


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