Shear viscous drag within the thin fluid film at the contact between grains in water-saturated sand is an important loss mechanism for high-frequency sound in the Biot-Stoll plus contact squirt flow and shear viscous drag (BICSQS) model [J. Acoust. Soc. Am. 116, 2011-2022 (2004)]. Couette flow was assumed for the shear drag but it breaks down when inertial effects within the film become significant. Using Biot's method, a correction is derived for the shear drag and inserted into the BICSQS model. The result is a prediction of negative sound speed dispersion, consistent with dynamic theories of fluid-filled poroelastic bodies. (C) 2008 Acoustical Society of America
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机译：在Biot-Stoll加上接触喷流和剪切粘滞阻力（BICSQS）模型中，流体在饱和水砂中的颗粒之间的接触处的流体膜内的剪切粘滞阻力是高频声的重要损耗机制[J． co Soc。上午。 116，2011-2022（2004）]。假定剪力为库埃特流，但当薄膜内的惯性效应变得显着时，它就会分解。使用比奥方法，可以得出剪切阻力的修正值，并将其插入BICSQS模型。结果是对负声速色散的预测，与流体填充的多孔弹性体的动力学理论一致。 （C）2008美国声学学会
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