Frequency dependencies of phase velocity and attenuation coefficient in a water-saturated sandy sediment from 0.3 to 1.0 MHz.

@article{Lee2007FrequencyDO,
  title={Frequency dependencies of phase velocity and attenuation coefficient in a water-saturated sandy sediment from 0.3 to 1.0 MHz.},
  author={Kang Il Lee and Victor Humphrey and Byoung-nam Kim and Suk Wang Yoon},
  journal={The Journal of the Acoustical Society of America},
  year={2007},
  volume={121 5 Pt1},
  pages={2553-8}
}
The frequency-dependent phase velocity and attenuation coefficient for the fast longitudinal wave in a water-saturated sandy sediment were measured over the frequency range from 0.3 to 1.0 MHz. The experimental data of phase velocity exhibited the significant negative dispersion, with the mean rate of decline of 120 +/- 20 m/s/MHz. The Biot model predicted the approximately nondispersive phase velocity and the grain-shearing (GS) model exhibited the slightly positive dispersion. In contrast… CONTINUE READING
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