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Features of sound generation by the jet-driven Helmholtz oscillator

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dc.contributor Казанский федеральный университет
dc.contributor.author Abdrashitov Aleksey Allanovich
dc.contributor.author Marfin Evgeny Alexandrovich
dc.contributor.author Plahova Ekaterina Allanovna
dc.date.accessioned 2021-11-02T11:18:56Z
dc.date.available 2021-11-02T11:18:56Z
dc.date.issued 2021
dc.identifier.citation Abdrashitov A., Marfin E., Plekhova E. Features of sound generation by the jet-driven Helmholtz oscillator / A. Abdrashitov, E. Marfin, E. Plekhova // Akustika. - 2021. - № 39. - Pp. 214-218.
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/166056
dc.description.abstract Experimental studies the model of a jet-driven Helmholtz oscillator has been carried out. The oscillator is a cylindrical chamber, closed on the sides by two covers with inlet and outlet holes. The oscillator was excited by a stream of airflow. The influence of the geometric dimensions of the chamber and the openings in the covers on the amplitude of pressure fluctuations was studied and the optimal channel configuration was determined. Particular attention is paid to the study of the influence on the amplitude of pressure fluctuations of the shape and size of the nozzle - the hole in the front cover. There were measured the following processes: the pressure drop across the nozzle, to calculate the speed of the jet at the chamber entrance, and the parameters of pressure fluctuations in the chamber, to plot the amplitude-frequency spectra. There were made certain observations of a jet tone appearance and acoustic modes excitation at the natural frequency of the chamber-resonator with a smooth increase in the jet velocity. The relationship between the jet tone and the resonant in the chamber is noted. Recommendations for designing a Helmholtz jet oscillator are presented.
dc.language.iso en
dc.relation.ispartofseries Akustika
dc.rights открытый доступ
dc.subject резонатор Гельмгольца
dc.subject струя
dc.subject генерация колебаний
dc.subject.other Механика
dc.subject.other Физика
dc.title Features of sound generation by the jet-driven Helmholtz oscillator
dc.type Article
dc.contributor.org Институт физики
dc.description.pages 214-218
dc.relation.ispartofseries-volume 39
dc.pub-id 258305
dc.identifier.doi 10.36336/akustika202139212

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