Author： Borjini Mohamed Naceur Mbow Cheikh Daguenet Michel
Publisher： Emerald Group Publishing Ltd
ISSN： 0961-5539
Source： International Journal of Numerical Methods for Heat & Fluid Flow, Vol.9, Iss.7, 1999-07, pp. : 742-764
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Abstract
The effect of radiation on unsteady natural convection in a two-dimensional participating medium between two horizontal concentric and vertically eccentric cylinders is investigated numerically. The equations of transfer are written by using a bicylindrical coordinates system, the stream function, and the vorticity. The finite volume radiation solution method and the control volume approach are used to discretize the coupled equations of radiative transfer, momentum, and energy. Original results are obtained for three eccentricities, Rayleigh number equal to 104, 105, and a wide range of radiation-conduction parameter. The effects of optical thickness, wall emissivity, and scattering on flow intensity and heat transfer are discussed.
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