Simplified Analytical Models for Forced Convection Heat Transfer From Cuboids of Arbitrary Shape-Reference-Cited by-同舟云学术

Simplified Analytical Models for Forced Convection Heat Transfer From Cuboids of Arbitrary Shape

Published:2000-10-13 Issue:3 Volume:123 Page:182-188
ISSN:1043-7398
Container-title:Journal of Electronic Packaging
language:en
Short-container-title:

Author:

Culham J. R.¹,Yovanovich M. M.¹,Teertstra P.¹,Wang C.-S.²,Refai-Ahmed G.³,Tain Ra-Min⁴

Affiliation:

1. Microelectronics Heat Transfer Laboratory, Department of Mechanical Engineering, University of Waterloo, Waterloo, ON, Canada

2. Advanced Thermal Solutions, Newton, MA

3. Solinet Systems, Ottawa, ON, Canada

4. Nortel Metworks, Kanata, ON, Canada

Abstract

Three analytical models are presented for determining laminar, forced convection heat transfer from isothermal cuboids. The models can be used over a range of Reynolds number, including at the diffusive limit where the Reynolds number goes to zero, and for a range of cuboid aspect ratios from a cube to a flat plate. The models provide a simple, convenient method for calculating an average Nusselt number based on cuboid dimensions, thermophysical properties and the approach velocity. Both the cuboid and the equivalent flat plate models are strongly dependent upon the flow path length which is bounded between two easily calculated limits. In comparisons with numerical simulations, the models are shown to be within ±6 percent over the range of 0⩽ReA⩽5000 and aspect ratios between 0 and 1.

Publisher

ASME International

Subject

Electrical and Electronic Engineering,Computer Science Applications,Mechanics of Materials,Electronic, Optical and Magnetic Materials

Link

http://asmedigitalcollection.asme.org/electronicpackaging/article-pdf/123/3/182/5882281/182_1.pdf

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3. Wedekind, G. L., and Kobus, C. J., 1996, “Predicting the Average Heat Transfer Coefficient for an Isothermal Vertical Circular Disk With Assisting and Opposing Combined Forced and Natural Convection,” Int. J. Heat Mass Transf., 39, No. 13, pp. 2843–2845.

4. Yovanovich, M. M., and Vanoverbeke, C. A., 1988, “Combined Natural and Forced Convection Heat Transfer from Isothermal Spheres,” Paper No. 88-2618, AIAA Thermophysics, Plasmadynamics and Lasers Conference, San Antonio, TX, June 27–29.

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