A.V.Zhukova The effect of parameters of a submerged jet on sound level of a hydrodynamic radiator |
Acoustic bulletin, Vol. 12 ¹ 4, (2009) |
| The counter-flow hydrodynamic jet radiator is modeled by a truncated conic submerged jet "shell". The dynamics of the "shell" determines the characteristics of generated acoustic field, in particular, its intensity. The higher is bending amplitude of the free end of jet "shell", the more vapor-gas cavities from the internal "shell's" area come outside and the higher is level of the sound generated by their collapse. Its maximum corresponds to the optimal jet's velocity, at that the frequency of pulsations of the unstable toroidal vortex coincides with "shell's" eigenfrequency. The paper deals with the experimental studying of the dependence of intensity of the acoustic field generated by the hydrodynamic radiator from jet's geometric, hydrodynamic parameters and properties of a liquid. |
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KEY WORDS: hydrodynamic radiator, submerged jet, flow velocity, sound level |
| TEXT LANGUAGE: Ukrainian |