Dispersion of polarized shear waves in viscous liquid over a porous piezoelectric substrate

Abstract

This article aims to study the propagation of polarized shear horizontal waves in viscous liquid layer resting over a porous piezoelectric half-space. An analytical solution is proposed using the separation of variables method. The dispersion relation is obtained using the proper boundary conditions for both electrically open and short cases in determinant form. The numerical example and graphical representation are provided in support of the findings. Dynamic response of affecting parameters (e.g. layer’s width, mass density, piezoelectric constant, dielectric constant, viscous coefficient, and dielectric coupling between the two phases of the porous aggregate) has been presented through graphs. It is observed that the phase velocity of considered wave remarkably affected by these parameters. Moreover, obtained result is matched with the existing result. Findings may contribute significantly toward optimization of surface acoustic wave devices and other liquid sensors. Moreover, this study may be utilized to frame a theoretical model for the problems of shear horizontal wave propagation in composite structures, involving piezoelectric medium.