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CONCENTRATED SUSPENSION THEORY OF SOUND ATTENUATION IN MARINE SEDIMENTS |
| QIAN ZU-wen |
| Institute of Acoustics, Academia Sinica, Beijing |
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| Cite this article: |
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QIAN ZU-wen 1985 Chin. Phys. Lett. 2 353-356 |
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Abstract Taking the sound interaction among particles in concentrated suspension into account and supposing that the masses of them have a normal distribution over the phi values of granular diameter, the statistical averages of scattered radiation and absorption coefficients in sea-bottom sediments are obtained. It is shown by numerical results of this paper that there will be a linear dependence of absorption coefficient on frequency as long as there is a large deviation of granular diameter. However, if βR ≤ 1, where R is the size of grains and β is the wavenumber of viscous wave, then the attenuation will vary with the frequency to the power higher than one.
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Published: 01 August 1985
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