Simulation of mixed convection heat transfer in a horizontal channel with an open cavity containing a heated hollow cylinder

Rahman, M.M. and Parvin, S. and Rahim, Nasrudin Abd and Hasanuzzaman, Md. and Saidur, Rahman (2012) Simulation of mixed convection heat transfer in a horizontal channel with an open cavity containing a heated hollow cylinder. Heat Transfer - Asian Research, 41 (4). pp. 339-353. ISSN 1099-2871

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Official URL: https://doi.org/10.1002/htj.21002

Abstract

The objective of this paper is to numerically investigate the mixed convective flow and heat transfer controlled by a heated hollow cylinder inside an open cavity attached with a horizontal channel. All the boundaries of the channel and cavity are perfectly insulated while the inner surface of the cylinder is heated uniformly by heat flux q. The equations of conservation of mass, momentum, and energy were solved using adequate boundary conditions by Galarkin's weighted residual finite element technique. The solution has been performed in the computational domain as a whole with proper treatment at the solid/fluid interface. Computations have been conducted for Ra = 10 3-10 5, Prandtl number Pr varying from 0.7 to 7 and ratio of solid to fluid thermal conductivities from 0.2 to 50. Results are presented in terms of streamlines, isotherms, heat transfer rate in terms of the average Nusselt number (Nu av), drag force (D), and maximum bulk temperature (θ max).

Item Type: Article
Additional Information: Export Date: 6 December 2012 Source: Scopus Article in Press CODEN: HTARF Language of Original Document: English Correspondence Address: Rahman, M.M.; Centre of Research UMPEDAC, Level 4, Engineering Tower, Faculty of Engineering, University of Malaya
Uncontrolled Keywords: Channel; Finite element method; Heat flux; Mixed convection; Open cavity
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 28 May 2013 01:14
Last Modified: 27 Nov 2019 06:32
URI: http://eprints.um.edu.my/id/eprint/6190

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