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Mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model


Citation

Rosali, Haliza and Ishak, Anuar and Pop, Ioan (2016) Mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model. Journal of Heat Transfer, 138 (8). pp. 1-7. ISSN 0022-1481; ESSN: 1528-8943

Abstract

The present paper analyzes the problem of two-dimensional mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium. It is assumed that the Darcy's law holds and that the solid and fluid phases of the medium are not in thermal equilibrium. Using an appropriate similarity transformation, the governing system of partial differential equations are transformed into a system of ordinary differential equations, before being solved numerically by a finite-difference method. We investigate the dependence of the Nusselt number on the solid-fluid parameters, thermal conductivity ratio and the mixed convection parameter. The results indicate that dual solutions exist for buoyancy opposing flow, while for the assisting flow, the solution is unique.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1115/1.4033164
Publisher: The American Society of Mechanical Engineers
Keywords: Natural convection; Porous media; Mixed convection
Depositing User: Ms. Ainur Aqidah Hamzah
Date Deposited: 18 Mar 2022 01:55
Last Modified: 18 Mar 2022 01:55
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1115/1.4033164
URI: http://psasir.upm.edu.my/id/eprint/53296
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