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arXiv · 0906.4798

Sound speed in water-saturated glass beads as a function of frequency and porosity

Theodore F. Argo IV·Matthew D. Guild·Preston S. Wilson·Matthias Schröter·Charles Radin·Harry L. Swinney
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Abstract

Sound propagation in water-saturated granular sediments is known to depend on the sediment porosity, but few data in the literature address both the frequency and porosity dependency. To begin to address this deficiency, a fluidized bed technique was used to control the porosity of an artificial sediment composed of glass spheres of 265 μm diameter. Time-of-flight measurements and the Fourier phase technique were utilized to determine the sound speed for frequencies from 300 to 800 kHz and porosities from 0.37 to 0.43. A Biot-based model qualitatively describes the porosity dependence.

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Theodore F. Argo IV, Matthew D. Guild, Preston S. Wilson, Matthias Schröter, Charles Radin, Harry L. Swinney. 2011-06-05. Sound speed in water-saturated glass beads as a function of frequency and porosity. https://doi.org/10.1121/1.3544678

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