DocumentCode
825999
Title
Underwater noise emissions from bubble clouds
Author
Lu, Nan Q. ; Prosperetti, Andrea ; Yoon, Suk Wang
Author_Institution
Dept. of Mech. Eng., Johns Hopkins Univ., Baltimore, MD, USA
Volume
15
Issue
4
fYear
1990
fDate
10/1/1990 12:00:00 AM
Firstpage
275
Lastpage
281
Abstract
By means of an effective equation model for the propagation of pressure waves in a bubbly liquid, the normal modes of oscillation of regions of bubbly liquid in an otherwise pure liquid are calculated for some simple geometries. It is shown that the frequencies of oscillation of such bubble clouds can be much lower than those of the constituent bubbles in isolation and fall well within the range where substantial wind-dependent noise is observed in the ocean. A comparison with some experimental data strongly supports the theoretical results
Keywords
bubbles; oceanography; two-phase flow; underwater sound; acoustic noise emission; bubble clouds; bubbly liquid; effective equation model; frequencies; normal mode oscillation; ocean; propagation of pressure waves; two phase flow; underwater sound; Acoustic emission; Acoustic noise; Clouds; Equations; Frequency estimation; Geometry; Oceans; Oscillators; Senior members; Solid modeling;
fLanguage
English
Journal_Title
Oceanic Engineering, IEEE Journal of
Publisher
ieee
ISSN
0364-9059
Type
jour
DOI
10.1109/48.103521
Filename
103521
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