Heat Transfer in Flow Through Rotating Ducts

[+] Author and Article Information
C. Y. Kuo

Lehigh University, Bethlehem, Pa.

H. T. Iida

Convair Astronautics Corporation, San Diego, Calif.; Lehigh University

J. H. Taylor

N.P.I.R.I., Lehigh University

F. Kreith

University of Colorado, Boulder, Colo.; Lehigh University

J. Heat Transfer 82(2), 139-151 (May 01, 1960) (13 pages) doi:10.1115/1.3679894 History: Received May 15, 1959


Experimentally measured heat-transfer coefficients and visually observed flow phenomena for water flowing through an electrically heated rotating pipe with various inserts are reported. Convection heat transfer in flow through a rotating pipe or a rotating annulus was found to be an exceedingly complex mechanism which can not be treated adequately in terms of conventional parameters, but requires a detailed understanding of wave and vortex phenomena which were visually observed and photographed. Heat-transfer coefficients were measured in completely as well as partially filled flow channels. Three distinct flow regimes were observed in all cases; transition between regimes was found to depend on the rotational speed, but not on the axial flow velocity. Stationary vortexes and a counterrotational fluid motion were observed.

Copyright © 1960 by ASME
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