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ISSN Online: 2377-424X

ISBN Print: 0-89116-559-2

International Heat Transfer Conference 8
August, 17-22, 1986, San Francisco, USA

NATURAL CONVECTION IN A THIN INCLINED POROUS LAYER EXPOSED TO A CONSTANT HEAT FLUX

Get access (open in a dialog) DOI: 10.1615/IHTC8.3860
pages 2665-2670

要約

Thermally driven flow in a thin inclined rectangular cavity, filled with a fluid saturated porous layer, was studied analytically and numerically. A constant heat flux was applied heating and cooling the two opposing walls of the layer while the end walls are insulated. On the basis of the Darcy-Oberbeck-Boussinesq equations, the problem has been solved analytically, in the limit of a thin layer, using asymptotic expansions and an integral form of the energy equation. Solutions for the flow fields, temperature distributions and Nusselt numbers were obtained explicitely in terms of the Rayleigh number and the angle of inclination of the cavity. A numerical study of the same phenomenon, obtained by solving the complete system of governing equations, was also conducted. A good agreement was found between the analytical predictions and the numerical simulation.