Effects of Reynolds and Prandtl number on mixed convection in a ventilated cavity with a heat-generating solid circular block

Rahman, M.M. and Parvin, S. and Rahim, N.A. and Islam, M.R. and Saidur, Rahman and Hasanuzzaman, M. (2012) Effects of Reynolds and Prandtl number on mixed convection in a ventilated cavity with a heat-generating solid circular block. Applied Mathematical Modelling, 36 (5). pp. 2056-2066. ISSN 0307-904X

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Abstract

A numerical study has been executed to analyze the effects of Reynolds and Prandtl number on mixed convective flow and heat transfer characteristics inside a ventilated cavity in presence of a heat-generating solid circular obstacle placed at the center. The inlet opening is at the bottom of the left wall, while the outlet one is at the top of the right wall and all the walls of the cavity are considered to be adiabatic. Galerkin weighted residual finite element method is used to solve the governing equations of mass, momentum and energy. Results are presented in terms of streamlines, isotherms, the average Nusselt number, the Drag force and the average fluid temperature in the cavity for different combinations of controlling parameters namely, Reynolds number, Prandtl number and Richardson number. The results indicate that the flow and thermal fields as well as the heat transfer rate, the Drag force and the average fluid temperature in the cavity depend significantly on the mentioned parameters.

Item Type: Article
Additional Information: 895WJ Times Cited:2 Cited References Count:17
Uncontrolled Keywords: heat transfer, solid circular block, ventilated cavity, mixed convection, finite element method, finite-element-analysis, rectangular cavity, conducting body, square cavity, enclosure, channel, enhancement, surface, wall conduction.
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: 27 May 2013 01:26
Last Modified: 25 Oct 2019 06:26
URI: http://eprints.um.edu.my/id/eprint/6188

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