Journal of Enhanced Heat Transfer Theory and Application in High Performance Heat and Mass Transfer

ISSN for PRINT: 1065-5131

For Online Access

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2005, Volume12

Issue 3

81 pages

DOI: 10.1615/JEnhHeatTransf.v12.i3

Issue price - $138.00

Ming-Han Lin
Department of Automation Engineering, Ta-Hwa Institute of Technology, Hsinchu 307, Taiwan, ROC

Chin-Tai Chen
Department of Industrial and Engineering Management, Ta-Hwa Institute of Technology, Taiwan

This paper presents a numerical study of thermal instability in natural convection flow over a convex surface with rotation. The onset position characterized by the Grashof number Gr_δr depends on the rotational Reynolds number, the Prandtl number, and the wave number. The buoyancy force, centrifugal force, and Coriolis force are found to significantly affect the flow structure and heat transfer. Positive rotation destabilizes the flow over a rotating convex surface. However, negative rotation stabilizes the flow. The numerical results show reasonable agreement with the experimental results in the case of zero rotation.

DOI: 10.1615/JEnhHeatTransf.v12.i3.40 Download article, 259-272 pages

Article price - $35.00

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