Results 31 to 40 of about 295,394 (292)
An Injected Fertigation Device
Guan'gai paishui xuebao, 2023 【Background and objective】 Fertigation has the advantage of delivering water and fertilizers simultaneously into the root zones to maximize their uptake by crops. It has seen a rapid application in China.
LI Hong +4 more
doaj +1 more source
Energies, 2020 This paper presents a multi-objective optimization strategy for pump-as-turbines (PAT), which relies on one-dimensional theory and analysis of geometrical parameters.
Longyan Wang +3 more
doaj +1 more source
Scientific Reports, 2022 The vertical long shaft fire pump (VLSFP) is mainly used in fire-fighting places far away from land and lacking large amounts of water supply. The paper selected the XBC18-178-240LC3 model of VLSFP as the research object.
Haiqin Song, Jinfeng Zhang, Fan Zhang
doaj +1 more source
Influence of Cutter Head on Cavitation of Non-Jammed Submerged Grinder Pump
Applied Sciences, 2022 For the investigation of the cavitation of non-jammed submersible grinder pumps, a GSP-22 model pump was numerically simulated based on CFX. ICEM-CFD was applied to a structured mesh for the flow components.
Rongsheng Zhu +4 more
doaj +1 more source
Improvement of Intake Structures in a Two-Way Pumping Station with Experimental Analysis
Applied Sciences, 2020 Pumping stations are important regulation facilities in a water distribution system. Intake structures can generally have a great influence on the operational state of the pumping station.
Yanjun Li +4 more
doaj +1 more source
Applied Sciences, 2020 This paper takes a pump-turbine as the research subject and, based on the Computational Fluid Dynamics (CFD) numerical method and combined with test data, investigates the pressure fluctuation characteristics in the pump mode and analyzes the pressure ...
Ping Huang +4 more
doaj +1 more source
The Cavitation Nuclei Transient Characteristics of Lennard-Jones Fluid in Cavitation Inception
Polish Maritime Research, 2018 In the field of ocean engineering, cavitation is widespread, for the study of cavitation nuclei transient characteristics in cavitation inception, we applied theoretical analysis and molecular dynamics (MD) simulation to study Lennard-Jones (L-J) fluid ...
Qiang Fu +5 more
doaj +1 more source
Comprehensive Research on the Effects of Different Launch Conditions on Pump-jet Propulsor Performance [PDF]
Journal of Applied Fluid MechanicsThis paper compares the cavitation of a pump-jet propulsor under different launch conditions and discusses the effects of cavitation on the performance and noise of the pump-jet propulsor rotor blade.
Q. Fu, Y. Duan, W. Shi, H. Li, R. Zhu
doaj +1 more source
Dynamic Analysis of Cavitation Tip Vortex of Pump-Jet Propeller Based on DES
Applied Sciences, 2020 When a pump-jet propeller rotates at high speeds, a tip vortex is usually generated in the tip clearance region. This vortex interacts with the main channel fluid flow leading to the main energy loss of the rotor system.
Jianping Yuan +6 more
doaj +1 more source
Mathematics, 2020 Rotor-stator interaction (RSI) in the centrifugal pump-as-turbine (PAT) is a significant source of high amplitude of the pressure pulsation and the flow-induced vibration, which is detrimental to the stable operation of PAT. It is therefore imperative to
Jian Xu +4 more
doaj +1 more source