Cavitation characteristics of mixed flow pump

Characteristics of cavitation and cavitation performance of mixed - flow pump
As a hydrodynamic propulsion unit, a mixed flow pump is required to meet specific flow, lift and cavitation performance requirements at the moment of start-up, and the size and quality are severely limited [1] and [2]. In general, stable working conditions, the pump cavitation characteristics have been more research [3 ~ 8]. In this paper, according to the special requirements of high-speed mixed-flow pump, the characteristics of cavitation erosion during start-up are analyzed according to the special properties of the parameters such as speed and flow rate. And the main measures to improve the cavitation performance of high-speed mixed-flow pump are proposed. In the process of start-up, the performance parameters such as speed, flow and head of the mixed-flow pump and the inlet conditions change rapidly with time, and the generation and development of cavitation is also very complex. In the process of starting the cavitation phenomenon, the use of 1200r / min speed of the model pump for cavitation and no cavitation conditions under the start-up test