ON TRANSITION RADIATION IN ACOUSTICS

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Abstract

The phenomenon of transition radiation and the analogy between acoustic and optical effects are discussed. Examples are given. The reflection of a single broadband acoustic pressure pulse from a thin, highly contrasting inhomogeneity is calculated. The process of acoustic field generation during abrupt braking of a sphere moving at subsonic speed is analyzed. The possibility of radiation by a vortex generated during the formation of an acoustic flow is discussed, taking into account hydrodynamic nonlinearity. The process of rapid bending of the interface of immiscible liquids caused by a pulse of radiation force, as well as the radiation of a body flying over an uneven surface, are considered.

About the authors

O. V. Rudenko

Lomonosov Moscow State University; Prokhorov General Physics Institute, Russian Academy of Sciences; Schmidt Joint Institute of Physics of the Earth, Russian Academy of Sciences

Email: rudenko@acs366.phys.msu.ru
Moscow, Russia

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