Confirmation of the Biot theory for water-saturated sands at high frequencies and effects of scattering on the attenuation of sound waves (L)

被引：0
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作者：
Ohkawa, Keiichi [1 ,2 ]
机构：
[1] Division of Applied Marine Physics, Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149, United States
[2] 5th Research Center, Technical R and D Center, Japan Defense Agency, 3-13-1 Nagase, Yokosuka, 2390826, Japan
来源：
Journal of the Acoustical Society of America | 2006年 / 119卷 / 02期
关键词：
Sound attenuation caused by the absorption and scattering of energy is studied. The Biot theory is used to predict the absorption coefficient. The scattering attenuation applies the experimental result. The calculated attenuation coefficient is the sum of absorption and scattering components; and is in excellent agreement with data collected during the sediment acoustics experiment in 1999. This implies that the frequency dependence of the attenuation coefficient due to the fluid viscosity follows f1/2 in the high-frequency range; as the Biot theory predicts. This also suggests that; at high frequencies; the attenuation coefficient is not linear in f. © 2006 Acoustical Society of America;
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Journal article (JA)
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页码：709 / 711
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