Effects of structural elasticity on the flow-induced cavity tone in water

Abstract

Abstract Measurement of the flow-induced tones of cavities with three different structural elasticity was conducted in the water tunnel. The frequency and amplitude of the cavity tones varied with the water flow velocity are present and discussed. In addition, the modal jump phenomenon of flow-induced cavities for both elastic cavities and rigid cavities is compared and discussed. The influence law of structural elasticity on the characteristics of flow-induced tones in water cavities in the amplitude-frequency domain is analyzed.