Pore alignment between two dissimilar saturated poroelastic media: Reflection and refraction at the interface

Abstract

Biot's theory is employed to study the reflection and refraction of plane harmonic waves at the welded interface between two dissimilar saturated poroelastic media. A pore alignment parameter is defined to classify the effects of connection between the interstices of the two media.Effects of pore alignment on the amplitude ratios and energy ratios have been calculated numerically, for a particular model. Amplitude and energy ratios do not change significantly as we move from partial alignment to full alignment of pores. However, the effect on amplitudes and energies is quite significant for the values of the pore alignment parameter approaching zero. For extreme values of the pore alignment parameter, the amplitude and energy ratios have been plotted against the angle of incidence.