Kudryashov N., Teterev N.

Two – dimensional propagation of the sound signal via a liquid with bubble area of the rectangular section is considered. It is assumed that the liquid is the acoustic compressibile and the dynamics oscillation is described by the Herring – Flynn equation. The sound signal is the sinusoidal wave and the solitary wave from the large range frequencies. Different regimes of the wave propagation are studied taking into consideration the volumetric maintenance of gas, width of bubble areas and relation of bubble channel width to the tank width. Various modes of occurrence and distribution of pressure splash are analyzed. It was found that amplitude in some cases considerably surpasses amplitude of initial indignation. Parameters are found for arising the pressure splash in the bubble channel field for existing for a long time and moving thus in space. Conditions are defined when the pressure splash can arise before, on and behind a crest of an initial sound signal. It is revealed, that reduction of width of the channel can lead for increasing for the splash amplitude. Its value can repeatedly exceed amplitude of an initial signal. Speed of the splash distribution in pressure is varied along the channel in a wide range, reaching found speed of a sound in a liquid in some cases.