Reflection of an Acoustic Wave from the Boundary between a Liquid and a Mixture of Liquid with Solid Particles and Gas Bubbles

The problem of reflection and transmission of acoustic waves at different angles of incidence through a layer or a boundary between a pure liquid and a bubbly liquid with an admixture of solid particles has been considered. For a model of medium water/water with air bubbles and glass particles, the reflection coefficients are calculated. The influence of the angle of incidence of waves, bubbles and particles on the reflection of waves is investigated.