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RESEARCH PAPERS

Turbulent Heat Transport in Circular Ducts With Circumferentially Varying Heat Flux

[+] Author and Article Information
J. W. Baughn, M. A. Hoffman, R. K. Takahashi

University of California, Davis, Calif. 95616

B. E. Launder

University of Manchester Institute of Science and Technology, Manchester, England

J. Heat Transfer 106(1), 64-70 (Feb 01, 1984) (7 pages) doi:10.1115/1.3246661 History: Received March 04, 1983; Online October 20, 2009

Abstract

Experiments have been performed with turbulent air flow in a tube with uniform and with top-half heating; the flow was hydrodynamically fully developed at the start of the heated section, and there were negligible buoyancy effects. Numerical solutions of the mean momentum and energy equations which use the suggestion [1] that the ratio of radial-to-circumferential turbulent diffusivities is equal to the corresponding ratio of mean square velocity fluctuations in these directions agree well with the experimental results.

Copyright © 1984 by ASME
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