Tones from a choked axisymmetric jet. I. Cell structure, eddy velocity and source locations
The cell structure of a choked axisymmetric jet was examined using schlieren photography over the pressure range in which acoustic tones are emitted. Several small discontinuities were noted and one range of abnormal development. Two methods for measurement of eddy velocity are given — one by noting their locations at known instants, the other by analysing the time averaged optical response to the interaction between the oppositely directed eddy and wave trains. It is shown that the tones are emitted from the 4th, 5th, 6th and 7th cell ends.
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Document Type: Research Article
Publication date: January 1, 1962
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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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