Dynamics of a spherical enclosure in a liquid during ultrasonic cavitation

Kuznetsova, E.L.; Fedotenkov, G.V.

Авторы: Kuznetsova Elena L., Fedotenkov Gregory V.
Журнал: Journal of Applied Engineering Science
Том: 18
Номер: 4
Год издания: 2020
Издательство: Institute for research and design in industry
Местоположение издательства: Belgrade, Serbia
Первая страница: 681
Последняя страница: 686
DOI: 10.5937/jaes0-28067
Аннотация: The paper investigates the process of pulsation of a spherical cavity (bubble) in a liquid under the influence of asource of ultrasonic vibrations. The pulsation of a spherical cavity is described by the Kirkwood-Bethe equations,which are one of the most accurate mathematical models of pulsation processes at an arbitrary velocity of the cavityboundary. The Kirkwood-Bethe equations are essentially non-linear, therefore, to construct solutions and parametricanalysis of the bubble collapse process under the influence of ultrasound, a numerical algorithm based on the Runge-Kutta method in the Felberg modification of the 4-5th order with an adaptive selection of the integration step intime has been developed and implemented. The proposed algorithm makes it possible to fully describe the processof cavitation pulsations, to carry out comprehensive parametric studies, and to evaluate the influence of various processparameters on the intensity of cavitation. As an example, the results of calculating the process of pulsation ofthe cavitation pocket in water are given and the influence of the amplitude of ultrasonic vibrations and the initial radiuson the process of cavitation of a single bubble is estimated.
Добавил в систему: Федотенков Григорий Валерьевич

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