Abstract
The agitation of the ocean surface wave action produces bubbles of various sizes in the upper layers and then forms bubble clouds down to tens of meters by Langmuir circulation, turbulence and other mechanisms in the ocean. Such bubbles may act collectively as well as individually as ambient noise sources and strong acoustic scatterers. Recently the production of bubble clouds was verified to be a more-likely mechanism of low-frequency ambient noise generation in the ocean. In the present paper we discuss sound speed variation in bubbly mixtures due to compressibillty change. Active and passive acoustic roles of bubbles in the ocean are also discussed reviewing experimental measurements of bubble cloud oscillations and sound propagation through bubbly mixtures.
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© 1994 Springer Science+Business Media Dordrecht
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Yoon, S.W., Choi, B.K. (1994). Active and passive acoustic roles of bubbles in the ocean. In: Blake, J.R., Boulton-Stone, J.M., Thomas, N.H. (eds) Bubble Dynamics and Interface Phenomena. Fluid Mechanics and Its Applications, vol 23. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0938-3_14
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DOI: https://doi.org/10.1007/978-94-011-0938-3_14
Publisher Name: Springer, Dordrecht
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