Effect of the number of orifice plate stages on cavitation characteristics

Abstract

Abstract In order to study the influence of the number of stages of the orifice cavitator on the effect of hydraulic cavitation, this paper adopts the numerical simulation method, with the help of pressure cloud map, gas content cloud map and turbulent kinetic energy cloud map, to observe the distribution location of low pressure area, meteorological area change law, and take the average gas content and maximum gas content rate as the criteria for judging cavitation strength, and quantitatively analyze the influence of different stages on the cavitation characteristics of orifice plate. In this experiment, purified water was used as the medium, and the conductivity of water after cavitation was measured by lightning magnetic conductivity meter to study the characteristics of cavitators of different series of orifice plates and verify the laws of numerical simulation. The experimental results show that at the same inlet flow rate and the same outlet pressure, the number of stages of the cavitator gradually increases, and the cavitation effect is weakened. This is consistent with the numerical simulation results.