Sound speed in water-saturated glass beads as a function of frequency and porosity - Condensed Matter > Soft Condensed MatterReportar como inadecuado




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Abstract: Sound propagation in water-saturated granular sediments is known to depend onthe sediment porosity, but few data in the literature address both thefrequency and porosity dependency. To begin to address this deficiency, afluidized bed technique was used to control the porosity of an artificialsediment composed of glass spheres of 265 {\mu}m diameter. Time-of-flightmeasurements and the Fourier phase technique were utilized to determine thesound speed for frequencies from 300 to 800 kHz and porosities from 0.37 to0.43. A Biot-based model qualitatively describes the porosity dependence.



Autor: Theodore F.Argo IV, Matthew D. Guild, Preston S. Wilson, Matthias Schröter, Charles Radin, Harry L. Swinney

Fuente: https://arxiv.org/







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