Results 11 to 20 of about 3,633,157 (186)

Study of a bi-directional axial flow blood pump [PDF]

, 2012
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A common treatment for circulatory disorders is the application of rotary blood pumps to locally increase blood flow to required levels.
Swalen, Marcel Johannes Petrus
core   +7 more sources

Study on Inlet Flow Field Structure and End-Wall Effect of Axial Flow Pump Impeller under Design Condition

Energies, 2022
The existing experimental technology cannot accurately and quantitatively measure the flow field structure and the wall boundary layer displacement effect in the axial flow pump.
Yanlei Guo, Congxin Yang, Yan Wang, Tianzhi Lv, Sen Zhao   +4 more
doaj   +1 more source

Control and Dynamic Characteristics Analysis for the Double-Compound Axial Piston Pump Based on Working Conditions

Machines, 2022
The periodic flow and pressure pulsation of the axial piston pump can lead to periodic vibration, noise, and even damage to various components in the hydraulic system.
Zhiyuan Sun, Qingliang Zeng, Lirong Wan, Hanzheng Dai   +3 more
doaj   +1 more source

Comparison of Saddle-Shaped Region of Head-Flow Curve between Axial-Flow Pump and Its Corresponding Axial-Flow Pump Device

Shock and Vibration, 2021
In engineering, the highest operating head of the pumping station is usually controlled to be slightly lower than the lowest saddle bottom head of the axial-flow pump.
Dongtao Ji, Weigang Lu, Linguang Lu, Lei Xu, Jun Liu, Wei Shi, Ye Zhu   +6 more
doaj   +1 more source

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

Applied 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, Qianxu Zhang, Jia Guo, Jiawei Wu, Yuan Zheng, Ziwei Ren   +5 more
doaj   +1 more source

Performance of a centrifugal pump running in inverse mode [PDF]

, 2004
This paper presents the functional characterization of a centrifugal pump used as a turbine. It shows the characteristics of the machine involved at several rotational speeds, comparing the respective flows and heads.
Parrondo, J, Blanco, E, Scanlon, T. J., Stickland, M. T., Fernández, J   +4 more
core   +4 more sources

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

Frontiers 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, Yanlei Guo, Congxin Yang, Congxin Yang, Yingxiang Mo, Yingxiang Mo, Yan Wang, Tianzhi Lv, Tianzhi Lv, Sen Zhao, Sen Zhao   +10 more
doaj   +1 more source

Flow mechanism and axial force distribution characteristics of multistage pump cavity

Science 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, Yang Li Huan, Qi Zhi Peng, Yang Cong Xin, Niu Chen Hui   +4 more
doaj   +1 more source

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

Guan'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, TONG Daobin, LI Zhongbin, WANG Rui, YANG Fan   +4 more
doaj   +1 more source

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

Machines, 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, Yuhang Jiang, Fangping Tang, Xijie Song, Yuxi Liu, Fan Yang, Lijian Shi   +6 more
doaj   +1 more source