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The Effect of Viscosity on the Spherical Stability of Oscillating Gas BubblesGas bubbles driven in radial oscillations are subject to an instability of the spherical shape that is opposed by surface tension and viscosity. An exact linear formulation for the study of the phenomenon has been available for many years, but its complexity has discouraged a detailed investigation. With the recent theory of sonoluminescence of Lohse and co-workers, there has been a renewed interest in the problem and new data have become available. This paper presents a numerical method for the solution of the pertinent equations and compares the theory with these new data. The coupling of the strong nonlinearity of the bubble radial oscillations with the parametric mechanism of the surface instability results in a very complex structure for the stability boundary. Nevertheless, a good agreement between theory and data is found. A comparison with earlier approximate models is also made.
Document ID
20020087661
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Hao, Y.
(Johns Hopkins Univ. Baltimore, MD United States)
Prosperetti, A.
(Johns Hopkins Univ. Baltimore, MD United States)
Date Acquired
August 20, 2013
Publication Date
June 1, 1999
Publication Information
Publication: Physics of Fluids
Publisher: American Inst. of Physics
Volume: 11
Issue: 6
ISSN: 1070-6631
Subject Category
Fluid Mechanics And Thermodynamics
Distribution Limits
Public
Copyright
Other

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