NOISE GENERATED BY CAVITATION IN ORIFICE-PLATES WITH SOME GASEOUS EFFECTS.
| Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
|---|---|
| Data(s) |
26/05/2014
26/05/2014
01/12/1986
|
| Resumo |
An experimental investigation of the noise generated by cavitation in turbulent shear flows produced by confined sharp-edge orifice-plates is reported. The acoustic source strength of cavitation was determined by means of reciprocity type measurements. Experimentally determined scaling parameters are applied to a model to prototype scaling formula derived from dimensional analysis. The proposed formula is checked experimentally. Comparative photographic observations of the cavitation patterns for two different values of gas content are presented. The observed sound reduction, that occurs when supersaturated conditions exist downstream the orifice-plates, is explained by the effects of gas diffusion into the cavitation bubbles, and by simple acoustic attenuation. |
| Formato |
41-52 |
| Identificador |
American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED, v. 45, p. 41-52. http://hdl.handle.net/11449/63794 2-s2.0-0022907269 |
| Idioma(s) |
eng |
| Relação |
American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED |
| Direitos |
closedAccess |
| Palavras-Chave | #ACOUSTIC WAVES - Attenuation #FLOW OF FLUIDS - Orifices #GASES - Diffusion #GASEOUS EFFECTS #ORIFICE-PLATES #PROTOTYPE SCALING FORMULA #RECIPROCITY PRINCIPLE #CAVITATION |
| Tipo |
info:eu-repo/semantics/conferencePaper |
