Baryshnikov A.S.1, Gruzdkov A.A.2, Zakharov M. A.1
1Ioffe Institute, St. Petersburg, Russia
2Saint-Petersburg State Institute of Technology (Technical University), St. Petersburg, Russia
Email: al.bar@mail.ioffe.ru, gruzdkov@mail.ru, maksimka-zakharov-1989@mail.ru
An equation similar to the Rayleigh equation is obtained, describing the oscillation of a single small bubble in a liquid, taking into account the compressibility of the liquid when exposed to a sound wave. Calculations of the dynamics of the bubble show that there are two possible variants of such an impact: the convergence of the bubble or its sharp expansion, depending on the frequency of the sound wave. The change in behavior occurs abruptly with a small change in frequency. Theoretically, this can lead to unexpected physical effects, for example, the formation of a high-temperature ionized gas, which causes a discharge in an electric field. Keywords: bubble in liquid, ultrasound, cavitation, resonance, electric discharge.
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