Acoustic bubble counting technique using sound speed extracted from sound attenuation

Authors
Citation
Bk. Choi et Sw. Yoon, Acoustic bubble counting technique using sound speed extracted from sound attenuation, IEEE J OCEA, 26(1), 2001, pp. 125-130
Citations number
25
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Civil Engineering
Journal title
IEEE JOURNAL OF OCEANIC ENGINEERING
ISSN journal
0364-9059 → ACNP
Volume
26
Issue
1
Year of publication
2001
Pages
125 - 130
Database
ISI
SICI code
0364-9059(200101)26:1<125:ABCTUS>2.0.ZU;2-V
Abstract
Sound attenuation has been solely used to estimate bubble size distribution s of bubbly water in the conventional acoustic bubble sizing methods. These conventional methods are useful for the void fraction around 10(-6) or low er. However, the change of compressibility in the bubbly water also should be considered in bubble sizing for the void fraction around 10(-5) or highe r. Recently, the sound speed as well as sound attenuation was considered fo r acoustic bubble size estimation in bubbly water. In this paper, the sound speed estimated from sound attenuation in bubbly water by an iterative met hod is used for a bubble counting. This new iterative inverse bubble sizing technique is numerically tested for bubble distributions of single-size, G aussian, and power-law functions. The numerical simulation results are in a greement with the given bubble distributions even for the high void fractio ns of 10(-4)-10(-3). It suggests that the iterative inverse technique can b e a very powerful tool for practical use in acoustic bubble counting in the ocean.