Profile of liquid droplet agitated by counter-propagating Rayleigh waves: Standing-wave soliton or ultrasonic fountain?

Korshak, B.A.; Mozhaev, V.G.; Zyryanova, A.V.

Авторы: Korshak B.A., Mozhaev V.G., Zyryanova A.V.
Сборник: Innovations in Nonlinear Acoustics: ISNA17 - 17th International Symposium on Nonlinear Acoustics including the International Sonic Boom Forum
Серия: AIP Conference Proceedings
Том: 838
Год издания: 2006
Место издания: The Pennsylvania State University
Первая страница: 500
Последняя страница: 503
DOI: 10.1063/1.2210404
Аннотация: An experimental study of the interaction between droplets of various liquids and 15 MHz-surface acoustic waves (SAWs) of Rayleigh type on lithium niobate substrate has been undertaken. The results are recorded as short movies. In the traveling-wave mode of operation, the known phenomena of acoustic droplet transport and vortex acoustic streaming inside the droplets are observed. In the standing-wave mode, a new phenomenon of quasi-stationary change of droplet profile under the action of counter-propagating SAWs is observed. The dynamic profile consists of a pedestal of uniform thickness above which a smooth liquid column is formed. Two alternative interpretations of this phenomenon namely standing-wave soliton and ultrasonic fountain are suggested. The calculation of radiation force generated by two counter-propagating leaky Rayleigh waves at the boundary between solid and liquid half-spaces is presented to support the last mentioned interpretation of the found phenomenon.
Добавил в систему: Можаев Владимир Геннадиевич

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Profile of liquid droplet agitated by counter-propagating Rayleigh waves: Standing-wave soliton or ultrasonic fountain?статья

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