Results 11 to 20 of about 18,474 (162)

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

Research on the Influence of Tip Clearance of Axial-Flow Pump on Energy Characteristics under Pump and Turbine Conditions

Machines, 2022
In order to study the influence of tip clearance on the performance and energy dissipation of the axial-flow pump and the axial-flow pump as a turbine, and find the location of high dissipation rate, this study took an axial-flow pump model as its ...
Yanjun Li, Qixu Lin, Fan Meng, Yunhao Zheng, Xiaotian Xu   +4 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

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

Comparative Analysis of Strength and Modal Characteristics of a Full Tubular Pump and an Axial Flow Pump Impellers Based on Fluid-Structure Interaction

Energies, 2021
Fluid-structure interaction (FSI) was used to determine the structural mechanical characteristics of full tubular and axial-flow pumps. The results showed that as the flow rate increases, the total deformation and equivalent stress are significantly ...
Lijian Shi, Jun Zhu, Li Wang, Shiji Chu, Fangping Tang, Yan Jin   +5 more
doaj   +1 more source

Numerical and Experimental Investigation of Internal Flow Characteristics and Pressure Fluctuation in Inlet Passage of Axial Flow Pump under Deflection Flow Conditions

Energies, 2021
The deflection flow of inlet passage seriously affects the performance of axial flow pump devices, and reduces the operation efficiency and stability of pumping station systems.
Fan Yang, Zhongbin Li, Yao Yuan, Chao Liu, Yiqi Zhang, Yan Jin   +5 more
doaj   +1 more source