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RESEARCH PAPERS

Heat Transfer From a Cylinder in Crossflow Situated in a Turbulent Pipe Flow

[+] Author and Article Information
R. J. Pederson, E. M. Sparrow

Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minn.

J. Heat Transfer 99(3), 425-432 (Aug 01, 1977) (8 pages) doi:10.1115/1.3450713 History: Received January 25, 1977; Online August 11, 2010

Abstract

Experiments to measure the average heat transfer characteristics for a cross-flow cylinder situated in a pipe flow have been performed for various degrees of blackage. Three cylinders, respectively with diameters of one-fifth, one-third, and one-half that of the pipe, were employed. The experiments were carried out with both water and air as working fluids. Measurements were also made of the turbulence level in the flow approaching the cylinder. The measured heat transfer results were compared with literature information for a cylinder of large length-diameter ratio situated in cross-flow in an unbounded low-turbulence flow (i.e., the ideal case of a cylinder in cross-flow) and were found to be substantially higher. A number of schemes were investigated for correlating the cylinder-in-pipe results with those for the ideal case. As an outcome of these correlation efforts, adaptations of available ideal cylinder relations are presented from which cylinder-in-pipe results can be predicted with good accuracy.

Copyright © 1977 by ASME
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