Acoustic Einstein-Hopf Drag on a Bubble

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Authors
Larraza, A.
Tucholski, E.
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Date of Issue
2000-03
Date
13 March 2000
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Abstract
Theoretical results show that the drag on a bubble can be modified by the presence of isotropic, homogeneous, broadband acoustic noise, when the band overlaps the bubbleâ s resonance width. While these results constitute an acoustic analog to the Einstein-Hopf drag on an oscillating dipole in the presence of electromagnetic fluctuations, an important difference is that band-limited acoustic noise can reduce the drag when the lower frequency of the spectrum coincides with the resonant frequency of the bubble. Applications to bubble migration, heat transfer, and acoustophoresis are suggested.
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Article
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Physics
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This work was sponsored in part by the Naval Postgraduate School Research Program and by the Office of Naval Research.
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Physical Review Letters, Volume 84, Number 11, 13 March 2000.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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