The Influence of Sound on Free Convection From a Horizontal Cylinder

[+] Author and Article Information
R. M. Fand

Research Laboratory of Heat Transfer in Electronics, M.I.T., Cambridge, Mass.

J. Kaye

M.I.T., Cambridge, Mass.

J. Heat Transfer 83(2), 133-143 (May 01, 1961) (11 pages) doi:10.1115/1.3680494 History: Received May 13, 1960


In a previous publication the authors described a new type of acoustic streaming, called thermoacoustic streaming, which occurs near a heated horizontal cylinder in the presence of horizontal transverse sound fields. In the present paper, quantitative experimental results are presented, which show that thermoacoustic streaming causes a marked increase in the coefficient of heat transfer from a heated cylinder; for a given temperature potential, the superposition of a sound field can increase the heat-transfer coefficient by a factor of 3, relative to the free-convection heat-transfer coefficient in the absence of sound. An empirical equation is provided by means of which the coefficient of heat transfer from a horizontal cylinder in the presence of horizontal transverse sound fields can be computed for many cases of practical interest.

Copyright © 1961 by ASME
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