Results 11 to 20 of about 109,720 (300)

Numerical study on the hydrodynamic performance and internal flow of an axial-flow pump with various inlet flow angles [PDF]

open access: yesScientific Reports, 2023
In this study, numerical simulation was employed to predict the performance and internal flow characteristics of the inlet of an axial-flow pump by assigning an absolute flow angle to the inlet guide vane (IGV) trailing-edge flow.
Yong-Jin Son   +5 more
doaj   +2 more sources

Investigation of the hydrodynamic characteristics of an axial flow pump system under special utilization conditions [PDF]

open access: yesScientific Reports, 2022
In actual operation, axial flow pump stations are often used for various special purposes to meet changing needs. However, because the hydrodynamic characteristics of axial flow pump systems are still unclear when used for special purposes, there are ...
Xiaowen Zhang, Fangping Tang
doaj   +2 more sources

Energy loss evaluation of axial flow pump systems in reverse power generation operations based on entropy production theory [PDF]

open access: yesScientific Reports, 2022
The use of existing large pumping station equipment for upstream residual water reverse power generation is an unrealized yet valuable renewable energy project.
Xiaowen Zhang, Fangping Tang
doaj   +2 more sources

Experimental study and numerical simulation of internal flow dissipation mechanism of an axial-flow pump under different design parameters [PDF]

open access: yesScientific Reports
This research uses CFD (computational fluid dynamics) to simulate an axial-flow pump and analyzes its internal flow dissipation. The results show that under different operating conditions, with increasing tip cascade density, the pump head gradually ...
Lijian Shi   +7 more
doaj   +2 more sources

Numerical study on the mechanism of fluid energy transfer in an axial flow pump impeller under the rotating coordinate system

open access: yesFrontiers in Energy Research, 2023
It is a necessary condition to obtain the fluid movement law and energy transfer and loss mechanism in the impeller of the axial pump for achieving an efficient and accurate design of the axial flow pump.
Yanlei Guo   +10 more
doaj   +1 more source

Optimal Design and Fish-Passing Performance Analysis of a Fish-Friendly Axial Flow Pump

open access: yesApplied Sciences, 2023
In this paper, the parameters of a prototype runner of an axial flow pump are optimized by using the immersion boundary–lattice Boltzmann numerical method based on a large-eddy simulation (LES-IB-LBM).
Chunxia Yang   +5 more
doaj   +1 more source

Flow mechanism and axial force distribution characteristics of multistage pump cavity

open access: yesScience Progress, 2022
The gap leakage between the impeller ring leads to the change of the pump cavity flow characteristics, resulting in the uneven pressure distribution of shroud, which causes the axial force of the cavity to change. In this paper, the flow in the front and
Qian Chen   +4 more
doaj   +1 more source

Numerical Analysis of Internal Flow in a Slanted Axial-flow Pump

open access: yesGuan'gai paishui xuebao, 2021
【Background and objective】 Slanted axial-flow pump has the advantages of small excavation depth, stable flow pattern and high efficiency. It has been widely used in large and medium-sized low head pumping stations.
HU Wenzhu   +4 more
doaj   +1 more source

Investigation on Start-Up Characteristics of Large Axial Flow Pump Systems Considering the Influence of Auxiliary Safety Facilities

open access: yesMachines, 2023
A large number of operation practices show that the reliability and stability of large axial flow pump systems will face significant challenges during the start-up process.
Xiaowen Zhang   +6 more
doaj   +1 more source

Axial-Flow Pump with Enhanced Cavitation Erosion Resistance

open access: yesEnergies, 2023
Axial-flow pumps, in addition to providing high anti-cavitation properties, must have high anti-erosion properties to ensure the required lifetime of the pump.
Aleksandr Zharkovskii   +5 more
doaj   +1 more source

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