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RESEARCH PAPERS: Boiling and Condensation

The Origin of the Dynamic Growth of Vapor Bubbles Related to Vapor Explosions

[+] Author and Article Information
H. S. Lee

The University of Michigan, 2250 G. G. Brown, Ann Arbor, MI 48109-2125

H. Merte

The University of Michigan, 2148 G. G. Brown, Ann Arbor, MI 48109-2125

J. Heat Transfer 120(1), 174-182 (Feb 01, 1998) (9 pages) doi:10.1115/1.2830041 History: Received December 16, 1996; Revised October 10, 1997; Online January 07, 2008

Abstract

An explosive type of vapor bubble growth was observed during pool boiling experiments in microgravity using R-113. Photographs reveal that the liquid-vapor interface of the explosive bubbles are wrinkled and corrugated, leading to the conclusion that some type of instability mechanism is acting. The classical hydrodynamic instability theories of Landau and Rayleigh-Taylor do not consider the effect of heat transfer, at the interface, which is believed to be responsible for the observed instability of the evaporating surface. This was confirmed by the mechanisms proposed by Prosperetti and Plesset, combined with a model of the early growth of spherical vapor bubbles.

Copyright © 1998 by The American Society of Mechanical Engineers
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