A combined experimental and analytical study of natural convection heat transfer in the enclosure formed between a convex shaped, isothermal heated body and its concave shaped, surrounding isothermal enclosure is presented. An experimental test program is conducted at atmospheric and reduced pressure conditions using a transient measurement technique for various enclosure configurations, including concentric cubes, cube-in-sphere, sphere-in-cube, and other geometries. Measurements are reported for a wide range of Rayleigh number, including the diffusive limit. An analytical modeling procedure is developed based on a composite solution of three asymptotic relationships, the conduction limit, the laminar boundary layer and transition flow convective limits. The composite model is in excellent agreement with the data, with an average RMS difference of 2–7% for all enclosure configurations and test conditions.
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ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
July 11–15, 2004
Charlotte, North Carolina, USA
Conference Sponsors:
- Heat Transfer Division and Fluids Engineering Division
ISBN:
0-7918-4690-3
PROCEEDINGS PAPER
Models and Experiments for Laminar Natural Convection From Heated Bodies in Enclosures Available to Purchase
Peter M. Teertstra,
Peter M. Teertstra
University of Waterloo, Waterloo, ON, Canada
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M. Michael Yovanovich,
M. Michael Yovanovich
University of Waterloo, Waterloo, ON, Canada
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J. Richard Culham
J. Richard Culham
University of Waterloo, Waterloo, ON, Canada
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Peter M. Teertstra
University of Waterloo, Waterloo, ON, Canada
M. Michael Yovanovich
University of Waterloo, Waterloo, ON, Canada
J. Richard Culham
University of Waterloo, Waterloo, ON, Canada
Paper No:
HT-FED2004-56633, pp. 443-453; 11 pages
Published Online:
February 24, 2009
Citation
Teertstra, PM, Yovanovich, MM, & Culham, JR. "Models and Experiments for Laminar Natural Convection From Heated Bodies in Enclosures." Proceedings of the ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. Volume 1. Charlotte, North Carolina, USA. July 11–15, 2004. pp. 443-453. ASME. https://doi.org/10.1115/HT-FED2004-56633
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