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Journal of Porous Media
Импакт фактор: 1.49 5-летний Импакт фактор: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Печать: 1091-028X
ISSN Онлайн: 1934-0508

Выпуски:
Том 22, 2019 Том 21, 2018 Том 20, 2017 Том 19, 2016 Том 18, 2015 Том 17, 2014 Том 16, 2013 Том 15, 2012 Том 14, 2011 Том 13, 2010 Том 12, 2009 Том 11, 2008 Том 10, 2007 Том 9, 2006 Том 8, 2005 Том 7, 2004 Том 6, 2003 Том 5, 2002 Том 4, 2001 Том 3, 2000 Том 2, 1999 Том 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v19.i4.60
pages 347-366

MIXED CONVECTION HEAT TRANSFER IN A VENTILATED ENCLOSURE WITH AND WITHOUT A SATURATED POROUS MEDIUM

Ali A. Mohammed
Department of Mechanical Engineering, University of Mosul, Mosul, Iraq
Amir S. Dawood
Department of Mechanical Engineering, University of Mosul, Mosul, Iraq

Краткое описание

Unsteady mixed convection heat transfer of the laminar fluid flow in a ventilated enclosure with and without a saturated porous medium was studied numerically. The flow outside the porous medium is governed by the Navier−Stokes equation, whereas the Brinkman−Forchheimer−extended Darcy model in which the inertia and boundary effects are taken into consideration governs the flow through the porous medium. The numerical simulations of the fluid flow and heat transfer were investigated with a wide range of Reynolds numbers (50−500) and Richardson numbers (0−10), with Prandtl number, Darcy number, and the porosity fixed at 0.71, 10−5, and 0.9, respectively. The effect of inclination angle on the fluid flow and heat transfer characteristics was studied in a range of angles between 30° and 90°. The results show that the time required to reach the steady state in the case where a porous medium is present is less than that required in the case where a porous medium is absent. Also, there was a major influence of inclination angle and porous materials on the flow and heat distribution in the enclosure.


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