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RESEARCH PAPERS

Bubble Growth in Variable Pressure Fields

[+] Author and Article Information
O. C. Jones

Thermal Hydraulic Development Division, Department of Nuclear Energy, Brookhaven National Laboratory, Upton, N. Y.

N. Zuber

Division of Water Reactor Safety Research, U. S. Nuclear Regulatory Commission, Washington, D. C.

J. Heat Transfer 100(3), 453-459 (Aug 01, 1978) (7 pages) doi:10.1115/1.3450830 History: Received July 30, 1976; Online August 11, 2010

Abstract

The case of a spherical vapor bubble growing in an infinite, uniformly heated liquid, has been analyzed under the thin boundary layer approximation for the effects of a variable pressure field, including density variation. It has been shown that, in addition to the usually accepted effects of initial superheat, variable pressure effects can be quite important and dominate the rate of growth. For the case where pressure changes cause the vapor temperature to behave as tn , (t being time), the bubble radius will grow as tn+1/2 , significantly faster than the t behavior usually expected. The analysis has been shown to compare favorably with existing data.

Copyright © 1978 by ASME
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