The pumpjet has the advantage of improving noise and cavitation performance by increasing the pressure inside the duct, and it has good efficiency at a low advance ratio. This study analyzed the propulsive performance of a pumpjet propulsor affixed to a SUBOFF submarine as a function ...
Investigation On the Propulsion of a Pump-Jet Propulsor in an Effective Wake SUBMARINE PROPELLERSELF-PROPULSIONUNDERWATER BODYFLOWPERFORMANCECAVITATIONPREDICTIONThe propulsion and vortical flow of a pre-swirl pump-jet propulsor (PJP) ... H Li,Q Huang,G Pan - 《Journal of Fluids Engineering》 被...
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The injection machine and the steam jet pump can work together, so that the injection machine and steam jet pump boosting mute nuclear-powered submarine can quiet move at a high speed.杜善骥
A CFD method was employed to analyze a conventional propeller working behind the hull of a submarine model and the numerical model was validated by experiments conducted in towing tank (Vali et al., 2018). The flow and the pressure distribution of a pump-jet propulsor that operates in the ...
A kind of submarine rotary pump torpedo launch system is put forward in this paper.The system consists of an air bottle, a programmable valve, an air jet rotary engine, a mixed flow pump and so on. Its simulation model is built up, and the simulation data of torpedo launch are discussed...
Numerical analysis of hydrodynamic force of front- and rear-stator pump-jet propulsion systems behind a submarine under oblique sailing The underwater vehicles' pump-jet propulsion capacity may affect during oblique sailing. In this study, the hydrodynamic performance of pump-jet propulsors... H ...
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Nowadays, hundreds of MPPs have been applied in onshore, offshore and submarine oilfields all over the word (Hamoud and Al-Ghamdi, 2008, Humoud et al., 2008). Multiple flow patterns are presented in the multiphase flow of gas and liquid produced from the oil wells, such as bubble flow,...
The invention discloses a pump water spray propulsion double-hydrofoil shallow diving carrier, which is technically characterized by absorbing the superiorities of a submarine, a carrier, a modern small water plane catamaran with superhigh speed and a hovercraft, and by using 'a multilevel double-...