Flow-induced noise generation in a simple fluid valve model

Abstract

Noise-source mechanisms for a 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 experimental data indicated that the scaling laws could be further improved by a reexamination 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 is good. © 2004 Institute of Noise Control Engineering.

Effect of sleeve orifices ratio on flow performance and hydrodynamic noise in the two-stage sleeve control valve

“…Therefore, an efficient tool of DSC is used for the study of sound generation mechanisms, which is rarely used in engineering application. Besides, such an empirical method, Prek 11 presented hydroacoustic scaling laws derived by dimensional analysis. The empirical formula was determined statistically comparing scaling laws with experimental data using multiple regression analysis.…”