Markatos, N.C. and Pericleous, K.A. ORCID: https://orcid.org/0000-0002-7426-9999 (1984) Laminar and turbulent natural convection in an enclosed cavity. International Journal of Heat and Mass Transfer, 27 (5). pp. 755-772. ISSN 0017-9310 (doi:10.1016/0017-9310(84)90145-5)

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Abstract

The paper presents a computational method used to obtain solutions of the buoyancy-driven laminar and turbulent flow and heat transfer in a square cavity with differentially heated side walls. A series of Rayleigh numbers, ranging from 103 to 1016 was studied. Donor-cell differencing is used, and mesh-refinement studies have been performed for all Rayleigh numbers considered. The turbulence model used for Rayleigh numbers greater than 106 is a (k ~ ε) two-equation model of turbulence, that includes gravity ~ density gradient interactions. The results are presented in tabular and graphical form, and as correlations of the Nusselt and Rayleigh numbers. Furthermore, the results for Rayleigh numbers up to 106 are compared with the benchmark numerical solution of de Vahl Davis.

Item Type:	Article
Additional Information:	[1] Available online: 27 February 2003. [2] First published in print: May 1984.
Uncontrolled Keywords:	natural convection, heat transfer, CFD
Pre-2014 Departments:	School of Computing & Mathematical Sciences School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Science & Engineering Group
Related URLs:	Publisher Organisation
Last Modified:	02 Mar 2019 15:52
URI:	http://gala.gre.ac.uk/id/eprint/5966

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