Open Access

ARTICLE

Numerical Study of Combined Natural Convection-surface Radiation in a Square Cavity

S. Hamimid^1,2, M. Guellal¹

1 Laboratoire de Génie des Procédés Chimiques, Université de Sétif 1, Algeria.
2 Faculté des Sciences et des Sciences Appliquées, Université de Bouira, Algeria. Corresponding author. Email: sa_hamimid@yahoo.fr

Fluid Dynamics & Materials Processing 2014, 10(3), 377-393. https://doi.org/10.3970/fdmp.2014.010.377

Abstract

Combined laminar natural convection and surface radiation in a differentially heated square cavity has been investigated by a finite volume method through the concepts of staggered grid and SIMPLER approach. A power scheme has been also used in approximating advection–diffusion terms, determining the view factors by means of analytical expressions. The effect of emissivity on temperature and velocity profiles within the enclosure has been analyzed. In addition, results for local and average convective and radiative Nusselt numbers are presented and discussed for various conditions.

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Keywords

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