VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • The impact of geometrical parameters on hydrodynamic noise generation [Elektronski vir]
    Prek, Matjaž
    Measurement of the acoustical characteristics of throttling valves, particularly in water installation systems, is usually based on airborne measurements. However, direct measurements of fluid-borne ... noise give us a better understanding of noise-source acoustical characteristics. This method allows us to use the determined noise-source characteristics to create hydroacoustical models describing the relationship between hydraulic and acoustic conditions. This method also shows the influence of geometrical parameters on noise production and emission. Noise-source mechanisms for the simple fluid valve model were observed and compared with predicted mechanisms. Hydroacoustic scaling laws for the noise sources were derived by dimensional analysis of the governing equations. A comparison of the predicted mechanisms with the experimental data indicated that the scaling laws could be further improved by a re-examination of the influence of the impact parameters. This was done by an extended analysis of the influence of geometrical parameters on acoustical characteristics. Additional parameters were determined statistically using non-linear multiple regression analysis of the experimental data. The estimated correlation between the observed and predicted values for the applied geometrical and hydrodynamic parameters are good.
    Vir: Inter-Noise 2001 [Elektronski vir] : proceedings (in01_189.pdf (4 str.))
    Vrsta gradiva - prispevek na konferenci
    Leto - 2001
    Jezik - angleški
    COBISS.SI-ID - 4989467

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