Numerical simulation of fluid-solid coupling noise in marine three-way control valve
Aiming at the problem that the acoustic characteristics of Marine PN10DN32 three-way regulating valve noise spectrum and acoustic directivity are not clear,and whether the sound pressure level of noise meets the requirements of use,based on the theory of fluid-structure interaction,considering the fluid-structure interaction surface and the pulsating acoustic excitation source in the fluid domain,the numerical simulation of valve noise is carried out.The noise at 1 m outside the 80％and 60％opening of the three-way regulating valve was numerically simulated,and the characteristics of noise sound pressure spectrum and the law of sound directivity were analyzed.The results show that the sound pressure levels of noise at 80％and 60％opening are 49.14 dB(A)and 50.79 dB(A)respectively,which are both lower than the noise limit of 60 dB(A)and meet the requirements of operation.It provides theoretical and methodological reference for the numerical simulation of Marine three-way regulating valve noise.
Three-way control valveFluid-solid couplingAcoustic directivitySound pressure spectrum characteristicsNumerical simulation of noise
NETL
NSTL
万方数据
维普
