New Mechanisms Of The Mutual Transformation Of Wave Processes In Hydro-Acoustic Waveguides

It is well known that the sound field in a solid body is formed by longitudinal and transverse components, which are connected by the mechanism of mutual transformation upon reflection from the interfaces. If the sound field is formed in liquid media, there is no transverse component, but, nevertheless, new mechanisms of mutual transformation of wave processes arise if the corresponding boundary problem is described by a non-self-adjoint operator and is solved in a non-self-adjoint model formulation. New mechanisms of mutual transformation of wave processes are considered for the first time on the example of a generalized solution of the boundary value problem for the reflection of sound waves at the interface between two liquid half-spaces, obtained in a non-self-adjoint model formulation. Among them, a special role is played by the processes of mutual transformation of diverging waves into converging recoil waves, as well as the processes of mutual transformation of the potential component of the intensity vector into a vortex component. When solving a more complex Pekeris boundary problem in a non-self-adjoint model formulation, the structure of the generalized solution becomes more complicated, and the mechanisms of mutual transformation become more complicated. Since the generalized solution is well confirmed experimentally, the new mechanisms of mutual transformation considered in this article are of a fundamental nature.