Study of Sound Attenuation in Sediments.

Abstract

This dissertation describes an experimental method by which the low-frequency attenuation of compressional waves in a sediment may be measured in the laboratory. The Biot and Hamilton models of sound propagation through sediments are reviewed. Measurements of attenuation in one laboratory sediment are presented, and the measured attenuation is compared to the predictions of the Biot and Hamilton models. The functional dependence of the attenuation measurements is of the form predicted by the Biot model, although the actual magnitude of the measured attenuation is higher than expected. The excess attenuation may be explained by the incomplete de-gassification of the sediment.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1984
Accession Number
ADA153690

Entities

People

  • H. E. Bass
  • S. R. Addison

Organizations

  • University of Mississippi

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Properties
  • Acoustic Waves
  • Acoustics
  • Bulk Modulus
  • Composite Materials
  • Doppler Effect
  • Electronic Equipment
  • Fluids
  • Measurement
  • Mechanics
  • Physical Properties
  • Seabed
  • Sound Waves
  • Standing Waves
  • Thermal Conductivity
  • Wave Propagation

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Computational Modeling and Simulation