Abstract
To explore the noise problem of the solenoid valve in the pressurized water-air system of a pumped storage power station when operating under the discharge condition, a full-channel unsteady numerical simulation was carried out on the medium-pressure gas storage tank and its discharge facilities. Firstly, the large eddy simulation (LES) method was used to calculate the sound source, and then the finite element method (FEM) was used to solve the internal sound field. The flow field and sound field distribution of the solenoid valve in the pressure water-air system are analyzed in detail. Then the near-field noise analysis method is used to trace the source of the noise problem of the solenoid valve. Finally, according to the noise intensity distribution, the location of the noise source and the noise mechanism is clarified, which provides the basis for the selection of a technical route for the subsequent optimization design of the solenoid valve in the exhaust pressure water system.
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