Amrani, A. and Dihmani, N. and Amraqui, S. and Mezrhab, A. (2017) Analysis of combined natural convection and thermal radiation heat transfer in a triangular shaped roof for hot climates. Journal of Materials and Environmental Science, 8 (8). pp. 3013-3027.

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Abstract

The roofs play an important role in the energy performance of building. In the present study, natural convection with surface radiation heat transfer is investigated numerically in a triangular shaped roof with eave (Gabel roof) for hot climates. A specifically developed numerical model, based on the finite-volume method, is used for the solutions of the governing differential-equations. The SIMPLER algorithm was adopted for the treatment of velocity-pressure coupling. Concerning the radiation exchange, we consider that the fluid (air) is transparent, so only the solid surfaces contribute to the radiation exchange and assumed to be diffuse-gray. The key parameters for this analysis are considered as Rayleigh number (Ra), aspect ratio (A) and eave lengths (e*). Results are reported in terms of isotherms, streamlines and local and average Nusselt numbers.

Item Type:	Article
Subjects:	Environmental Science
Divisions:	SCIENTIFIC PRODUCTION > Environmental Science
Depositing User:	Administrateur Eprints Administrateur Eprints
Last Modified:	31 Jan 2020 15:47
URI:	http://eprints.umi.ac.ma/id/eprint/3480

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