Results 31 to 40 of about 1,286,404 (352)
Dynamic Characteristics and Effect on Thrust of Jet Tail Vortex Ring for Pump Jet Propulsion
Frontiers in Energy Research, 2022 When a pump is propelled by a propeller, the nozzle flooding of the jet wake area will produce a turbulent quasi-sequence structure and have a certain impact on the outflow field structure and thrust characteristics of the water jet propulsion pump.
Wei Han +7 more
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Development of Hybrid Airlift-Jet Pump with Its Performance Analysis
Applied Sciences, 2018 A new pump, called the hybrid airlift-jet pump, is developed by reinforcing the advantages and minimizing the demerits of airlift and jet pumps. First, a basic design of the hybrid airlift-jet pump is schematically presented.
Dan Yao +4 more
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Experimental study of controlling tip clearance flow in a pump-jet propulsor
Zhongguo Jianchuan Yanjiu, 2023 ObjectiveThis paper aims to suppress the adverse effects of tip clearance flow on the hydrodynamic performance and unsteady excitation force of a pump-jet propulsor. MethodAs for the pre-swirl stator pump-jet propulsor, an annular flexible seal structure
Ruilin HAN +5 more
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The technology of using a jet pump to increase the efficiency of vertical drainage [PDF]
BIO Web of ConferencesVertical drainage systems, which rely on pumps and tube wells, are widely recognized for their effectiveness despite drawbacks such as high costs and significant energy consumption.
Rakhimov Kudrat +3 more
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Energy Reports, 2023 The jet pump is one of the most popular types of fluid machinery in agriculture, industry and environmental engineering and many other fields. However, its internal flow structure is complex, showing obvious unsteady characteristics. The effect of throat
Yang Yang +6 more
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Turbulence modelling for RANS CFD analyses of multi-nozzle annular jet pump swirling flows
International Journal of Heat and Fluid Flow, 2020 This study focusses on the fluid mechanic analysis and performance assessment of a one-phase swirling flow multi-nozzle annular jet pump using Reynolds-averaged Navier–Stokes simulations and experimental measurements carried out with a bespoke test rig ...
A. Morrall, S. Quayle, M. Campobasso
semanticscholar +1 more source
Shiyou jixieTo address the underperformance of jet pump deliquification in high water cut tight gas reservoirs of Qingshimao field， optimizing the jet pump deliquification technology of high water-cut tight gas reservoirs is imperative.
Li Wanzhong +4 more
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Investigation on Optimization Design of High-Thrust-Efficiency Pump Jet Based on Orthogonal Method
EnergiesCompared with traditional propellers, the pump jet has the characteristics of low noise, large thrust, and high efficiency, which is widely used in underwater ships, unmanned underwater vehicles, and underwater rescue equipment. It is difficult to design
Xiaojun Zhang +3 more
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Effect of Tip Clearance on the Cavitation Performance of High-Speed Pump-Jet Propeller
Processes, 2023 To investigate the impact of tip clearance variation on the cavitation performance of a high-speed pump-jet propeller, Fluent software was employed for simulation calculations.
Gongchang Gan +5 more
semanticscholar +1 more source
Авіаційно-космічна техніка та технологія, 2023 This article analyzes the possibility of increasing the efficiency of the gear pump operating cycle by using a jet pump as a booster stage. The design of gear pumps is performed for one mode, and most often, it is a mode with minimum speed and high ...
Ihor Romanenko, Oleksandr Bilohub
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