Hydrodynamic Characterisation of Underwater Vehicles and Pump-Jet
Pump-jet is a complex structure of multi-component combination of underwater propulsion,mainly consists of three parts:conduit,stator and rotor,with high critical speed,high efficiency and low noise and other characteristics.Foreign pump jet propulsion research and application of earlier,for torpedoes and submarines main propulsion,domestic research work compared to the late start.This paper introduces the characteristics of the flow field around the submarine and the pump-jet propeller,and summarises the current status of the research on the characteristics of the pump-jet flow field at home and abroad in accordance with the submarine and the propeller test and numerical simulation.The cavitation flow characteristics of the pump-jet thruster are further analysed and the current structural optimisation strategy of the thruster is presented.Finally,the study of pump-jet flow field characteristics and the main challenges faced in practical applications are analysed and summarised.
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