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TECHNICAL PAPERS: Forced Convection

Heat Transfer in Rotating Narrow Rectangular Ducts With Heated Sides Parallel to the r-z Plane

[+] Author and Article Information
Fred T. Willett

Power Technology Incorporated, P.O. Box 232, Rexford, NY 12148 e-mail: frdwillett@aol.com

Arthur E. Bergles

Rensselaer Polytechnic Institute, Troy, NY 12180e-mail: abergles@aol.com

J. Heat Transfer 124(1), 1-7 (Jun 12, 2001) (7 pages) doi:10.1115/1.1418370 History: Received January 03, 2001; Revised June 12, 2001
Copyright © 2002 by ASME
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References

Figures

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Outward flowing channel in rotation
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Rotating test rig diagram
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Rotor disk with test duct ready for installation
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Test duct and thermocouple locations
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The 1:10 aspect ratio duct oriented parallel to the r-z plane
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Trailing-side Nu/Nu0 versus buoyancy number for the smooth duct parallel to the r-z plane (uncertainty=±11 percent)
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Trailing-side Nu/Nu0 density ratio for the smooth duct parallel to the r-z plane (uncertainty=±11 percent)
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Trailing-side Nu/Nu0 buoyancy number for the smooth duct parallel to the r-z plane (uncertainty=±11 percent)
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Trailing-side Nu/Nu0 density ratio for the smooth duct parallel to the r-z plane (uncertainty=±11 percent)
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Definition of aspect ratio
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Comparison of present leading-side data with leading-side data for square ducts (uncertainty of new data=±11 percent)
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Comparison of present trailing-side data with trailing-side data for square ducts (uncertainty of new data=±11 percent)
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Comparison of present duct leading-side data with leading-side data for a 1:2 aspect ratio rectangular duct (uncertainty of new data=±11 percent)
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Comparison of present duct trailing-side data with trailing-side data for a 1:2 aspect ratio rectangular duct (uncertainty of new data=±11 percent)

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