RESEARCH PAPERS: Forced Convection

Longitudinal Heat Transfer in Oscillatory Flows in Pipes With Thermally Permeable Wall

[+] Author and Article Information
T. Inaba

Department of Mechanical Engineering, Osaka University, 1-16 Machikaneyama, Toyonaka, Osaka 560 Japan

J. Heat Transfer 117(4), 884-888 (Nov 01, 1995) (5 pages) doi:10.1115/1.2836306 History: Received April 01, 1994; Revised January 01, 1995; Online January 23, 2008


The effect of a thermally permeable wall on the enhanced longitudinal heat transfer by fluid pulsation in a pipe has been investigated. An analytical solution is obtained for the case when heat loss through the wall over a cycle of fluid pulsation is uniform along the pipe. The distribution of time-averaged sectional mean temperature is expressed by a quadratic curve. The rate of longitudinal heat transfer decreases linearly toward the lower temperature end. The amplitude of time-varying sectional mean temperature also decreases toward the same end. The effect of the value of Womersley number on this temperature field is discussed.

Copyright © 1995 by The American Society of Mechanical Engineers
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