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- W2949280108 abstract "The acoustic field generated by hydrodynamic cavitation is usually random and broadband. There is, however, a case in which it is tonal. Indeed, as reported by Higuchi, Arndt, and Rogers [J. Fluids Eng. (Dec. 1989)], and Maines and Arndt [ASME Symp. Cavitation and Multiphase Flow (1995)], cavitating vortices which shed off from a body immersed in a flow may generate a harmonic acoustic signal even if involving no vibrations of the cavitating body. This paper presents the results of the parametric analysis of sound generated by the singing vortices produced in a test on a finite‐span hydrodynamic profile immersed in a uniform water flow. A continuous development of the vortex through filling by air was investigated. The acoustic diagnosis of the process of oscillations of the cavitating vortex generating the singing is presented. The issues relevant to the theoretical modeling of the lock‐in mechanism are investigated: necessary conditions for the onset and stability of the process, possible influence of water velocity other than through the cavitation number, influence of vortex energy, etc. The relevant peculiarities of the vortex dynamics are revealed. The question if there is a back‐influence of the singing on the basic vortex dynamics is considered." @default.
- W2949280108 created "2019-06-27" @default.
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- W2949280108 date "2002-06-07" @default.
- W2949280108 modified "2023-09-24" @default.
- W2949280108 title "Acoustic diagnosis of singing cavitation vortices" @default.
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