Results 11 to 20 of about 92,347 (259)

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

Fluid Dynamic Characteristics and Flow Distribution ‎Structure Optimization of Axial Piston Pump Considering ‎Cavitation Bubble Evolution

open access: yesJournal of Applied Fluid Mechanics, 2021
An axial piston pump can produce a serious cavitation phenomenon in the high- and low-pressure ‎transition process. Cavitation bubbles expand, compress, rebound and collapse when they enter the high-‎pressure oil drainage area.
Y. Pan, A. H. Chen, Z. N. Wang
doaj  

Behavior of axial thrust caused by intake sump vortices in a vertical mixed flow pump

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Axial thrust forces acting on an impeller of a diffuser type mixed flow pump and the behavior of the axial thrust generated by the vortex occurrence in a pump intake sump were studied.
Yuji KANEMORI, Yasuo HANDA
doaj   +1 more source

Novel study on the pressure pulsation of the axial piston machines with even number of pistons

open access: yesThe Journal of Engineering, 2020
Flow and pressure ripples of axial piston machines have received sustained attentions by researcher in flow power domain. Traditionally, almost all the axial piston pumps have been designed with odd number of pistons.
Junjie Zhou   +3 more
doaj   +1 more source

The Effects of Inlet Flow Modification on Cavitating Inducer Performance [PDF]

open access: yes, 1992
This paper explores the effect of inlet flow modification on the cavitating and noncavitating performance of two cavitating inducers, one of simple helical design and the other a model of the low-pressure LOX pump in the Space Shuttle Main Engine.
Braisted, D. M.   +2 more
core   +1 more source

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