Reflection of Acoustic Waves From a Porous Material at Oblique Incidence I. K. Gimaltdinov, L. F. Sitdikova, V. L. Dmitriev, T. M. Levina, N. S. Khabeev, et al. Journal of Engineering Physics and Thermophysics, 2017 The process of reflection of acoustic waves through a porous medium in the case of their oblique incidence have been considered. It has been shown that as the angle of incidence increases, there is a decrease in the transmission coefficient.
Dynamics of acoustic waves in porous media saturated with gas-vapor mixture I. K. Gimaltdinov, V. L. Dmitriev, L. F. Sitdikova High Temperature, 2014 Wave processes in wet porous media saturated with gas-vapor mixture have been studied with allowance for interphase interaction forces and heat and mass exchange between the skeleton of the porous medium and the gas-vapor mixture. Dispersion relations have been obtained for a porous medium saturated with gas-vapor mixture, vapor, or gas.
Evolution of a wave pulse propagating through a porous obstacle I. G. Khusainov, V. L. Dmitriev Journal of Applied Mechanics and Technical Physics, 2011 This paper studies the evolution of a wave pulse during propagation through a porous obstacle located in a gas and saturated with it. The cases of open and closed boundaries of the porous obstacle are considered. The effect of the parameters of the porous medium such as the initial value of the gas volume fraction and pore size and interfacial heat transfer on the evolution of the wave pulse was analyzed.
The propagation of linear waves in humid, gas-saturated media S. V. Volodin, V. L. Dmitriev, I. G. Khusainov High Temperature, 2009 The process of propagation of acoustic waves in humid, gas-saturated porous media is investigated in a two-velocity approximation. A dispersion relation is derived, which includes interphase interaction forces and heat transfer between the skeleton of porous medium, liquid, and gas. The effect of heat transfer between the phases on the propagation of the “fast” and “slow” waves is included by means of heat equation