Ando, Keita and Colonius, Tim and Brennen, Christopher E. (2009) Improvement of acoustic theory of ultrasonic waves in dilute bubbly liquids. Journal of the Acoustical Society of America, 126 (3). EL69. ISSN 0001-4966 http://resolver.caltech.edu/CaltechAUTHORS:20090916-093310681
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The theory of the acoustics of dilute bubbly liquids is reviewed, and the dispersion relation is modified by including the effect of liquid compressibility on the natural frequency of the bubbles. The modified theory is shown to more accurately predict the trend in measured attenuation of ultrasonic waves. The model limitations associated with such high-frequency waves are discussed.
|Additional Information:||©2009 Acoustical Society of America. Received 28 May 2009; accepted 18 June 2009; published 27 July 2009. The authors gratefully acknowledge the support by ONR Grant No. N00014-06-1-0730 and by NIH Grant No. PO1 DK043881. # 43.35.Bf Ultrasonic velocity, dispersion, scattering, diffraction, and attenuation in liquids, liquid crystals, suspensions, and emulsions # 43.30.Ft Volume scattering (underwater sound) # 43.20.Hq Velocity and attenuation of linear acoustic waves|
|Subject Keywords:||aeroacoustics; bubbles; compressibility; dispersion relations; ultrasonic absorption; vibrations|
|Classification Code:||PACS * 43.35.Bf Ultrasonic velocity, dispersion, scattering, diffraction, and attenuation in liquids, liquid crystals, suspensions, and emulsions * 43.30.Ft Volume scattering (underwater sound) * 43.20.Hq Velocity and attenu|
|Official Citation:||Improvement of acoustic theory of ultrasonic waves in dilute bubbly liquids Keita Ando, Tim Colonius, and Christopher E. Brennen, J. Acoust. Soc. Am. 126, EL69 (2009), DOI:10.1121/1.3182858|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||George Porter|
|Deposited On:||02 Oct 2009 23:10|
|Last Modified:||26 Dec 2012 11:23|
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