Design method of water jet pump towards high cavitation performances

[摘要] As one of the crucial components for power supply, the propulsion system is of great significance to the advance speed, noise performances, stabilities and other associated critical performances of underwater vehicles. Developing towards much higher advance speed, the underwater vehicles make more critical demands on the performances of the propulsion system. Basically, the increased advance speed requires the significantly raised rotation speed of the propulsion system, which would result in the deteriorated cavitation performances and consequently limit the thrust and efficiency of the whole system. Compared with the traditional propeller, the water jet pump offers more favourite cavitation, propulsion efficiency and other associated performances. The present research focuses on the cavitation performances of the waterjet pump blade profile in expectation of enlarging its advantages in high-speed vehicle propulsion. Based on the specifications of a certain underwater vehicle, the design method of the waterjet blade with high cavitation performances was investigated in terms of numerical simulation.

[发布机构] Institute of Process Equipment, College of Chemical and Biological Engineering, Zhejiang University, Zheda Road 38 #, Hangzhou, Zhejiang; 310027, China^1

[效力级别] 工业技术 [学科分类] 工业工程学

[关键词] Cavitation performance;High speed vehicles;Noise performance;Propulsion efficiency;Propulsion system;Rotation speed;Underwater vehicles;Water-jet pumps