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Measurements of the growth of air bubbles by rectified diffusion

Crum, Lawrence A.·1980·The Journal of the Acoustical Society of America

Abstract

Measurements are reported of the growth of air bubbles in water by rectified diffusion at 22.1 kHz. Values of the threshold acoustic pressure amplitude were obtained as a function of bubble radius, liquid surface tension, and gas concentration. Measurements of the rate of growth of bubbles by rectified diffusion were also obtained as a function of acoustic pressure amplitude for a range of different values of the liquid–vapor surface tension. It was determined that although both the threshold and the growth rate were in agreement with theory for normal values of the surface tension of water, the addition of a surfactant caused the observed thresholds and growth rates to deviate from the predicted values. Surface wave activity that could increase the diffusion rate by acoustic streaming was not detected at low radii and is not thought to be the principal mechanism for the increased diffusion. Some possible explanations are given for the effect.

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Metadata

Authors
Crum, L. A.
Venue
The Journal of the Acoustical Society of America
Published
1980-07-01
Volume
68
Issue
1
Pages
203-211
ISSN
  • 0001-4966 (ISSN-L)
  • 1520-8524
OpenAlex
W2012340706
Cited by
233
References
0
FWCI
3.09
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Measurements of the growth of air bubbles by rectified diffusion. https://app.cochat.ai/papers/10.1121/1.384624
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Crum, L. A. (1980). Measurements of the growth of air bubbles by rectified diffusion. The Journal of the Acoustical Society of America. https://doi.org/10.1121/1.384624

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