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COMBINED NATURAL CONVECTION COOLING OF A DRINK CAN

Published online by Cambridge University Press:  25 March 2011

S. JIRACHEEWANUN*
Affiliation:
School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, New South Wales, Australia (email: [email protected], [email protected], [email protected]) Department of Mechanical Technology Education, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand
S. W. ARMFIELD
Affiliation:
School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, New South Wales, Australia (email: [email protected], [email protected], [email protected])
M. BEHNIA
Affiliation:
School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, New South Wales, Australia (email: [email protected], [email protected], [email protected])
*
For correspondence; e-mail: [email protected]
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Abstract

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We investigate natural convection cooling of the fluid in a drink can placed in a refrigerator by simulating the full combined boundary layer system on the can wall. The cylindrical can is filled with water at initial nondimensional temperature 0, and located within a larger cylindrical container filled with air at initial temperature −1. The outer container walls are maintained at constant temperature −1. Initially both fluids are at rest. Two configurations are examined: the first has the inner can placed vertically in the middle of the outer container with no contact with the outer container walls, and the second has the inner can placed vertically at the bottom of the outer container. The results are compared to those obtained by assuming that the inner can walls are maintained at a constant temperature, showing similar basic flow features and scaling relations, but with very different proportionality constants.

MSC classification

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 2011

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