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RESEARCH PAPERS

Collective Effects on the Growth of Vapor Bubbles in a Superheated Liquid

[+] Author and Article Information
G. L. Chahine, H. L. Liu

Tracor Hydronautics, Inc., Laurel, MD

J. Fluids Eng 106(4), 486-490 (Dec 01, 1984) (5 pages) doi:10.1115/1.3243155 History: Received June 27, 1983; Online October 26, 2009

Abstract

The problem of the growth of a spherical isolated bubble in a superheated liquid has been extensively studied. However, very little work has been done for the case of a cloud of bubbles. The collective behavior of the bubbles departs considerably from that of a single isolated bubble, due to the cumulative modification of the pressure field from all other bubbles. This paper presents a theoretical study on bubble interaction in a superheated liquid during the growth stage. The solution is sought in terms of matched asymptotic expansions in powers of ε, the ratio between rb0 , a characteristic bubble radius and l0 , the interbubble distance. Numerical results show a significant inhibition of the bubble growth rate due to the presence of interacting bubbles. In addition, the temperature at the bubble wall decreases at a slower rate. Consequently, the overall heat exchange during the bubble growth is reduced.

Copyright © 1984 by ASME
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