Influence of the squirt flow on reflection and refraction of elastic waves at a fluid/fluid-saturated poroelastic solid interface

Abstract

In this paper, the reflection and refraction problem of a plane wave moving in perfect fluid incident on a viscous fluid-saturated poroelastic solid is investigated. Attention is focus on the effect of squirt flow on the reflection and refraction coefficients predicted by BISQ model. The variations of these coefficients with the characteristic squirt flow length have been shown graphically. The results are also compared with those based on Biot theory without considering the squirt flow effects. The results indicate that the effect of the squirt flow is noticeable in the reflection and refraction phenomenon.