Experimental Measurements on Cavitation Bubble Dynamics
Radius-time curves have been obtained for cavitation bubbles in the free volume of a liquid subjected to a 20.5 kHz ultrasonic field. The bubbles were nucleated at a known phase of the sound cycle, and the subsequent motion up to the collapse was investigated by flash photography. In addition, the phase of emission of the sonoluminescent light pulse was measured. Because details of the sound field and of the nucleation phase are known, the expected behaviour of the bubbles can be computed from the Noltingk-Neppiras equations. The results of such computations show good agreement with the experimental observations, and the sonoluminescent light flash is very clearly seen to be associated with the bubble collapse.
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Document Type: Research Article
Publication date: January 1, 1969
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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