Results 51 to 60 of about 16,744 (167)

Analysis of Unsteady Flow Characteristics Near the Cutwater by Cutting Impeller Hub in a High-Speed Centrifugal Pump

Journal of Marine Science and Engineering
Centrifugal pumps are essential fluid transfer devices in marine engineering. As the two most critical components of a centrifugal pump, the dynamic–static interference between the volute and the impeller makes the flow near the cutwater highly unstable,
Baoling Cui, Mingyu Shi
doaj   +1 more source

Analysis of Flow and Pressure Pulsation in Draft Tube of Francis Turbine under Different Guide Vane Opening

Renmin Zhujiang, 2023
In order to explore the influence of the opening of the movable guide vane on the flow and pressure pulsation in the draft tube of the Francis turbine,the steady and unsteady numerical simulations were carried out by establishing a three-dimensional full-
REN Haibo, YU Bo, WANG Kui, WANG Luobin
doaj  

Pressure Fluctuation Characteristics of a Pump-Turbine in the Hump Area under Different Flow Conditions

Journal of Marine Science and Engineering
During the operation of a reversible pump-turbine, a hump area can easily appear under the pump condition, which will greatly affect the performance of a storage unit, with pressure pulsation being the key factor for the stable operation of a pump ...
Kai Zheng, Liu Chen, Shaocheng Ren, Wei Xiao, Yexiang Xiao, Anant Kumar Rai, Guangtai Shi, Zhengkai Hao   +7 more
doaj   +1 more source

Analysis of flow field characteristics of non-circular gear hydraulic motors under the influence of multiple factors

Results in Engineering
This study conducts an in-depth investigation into the flow field characteristics of non-circular gear hydraulic motors under high-water-based emulsion environments.
Junhai Guo, Changbin Dong, Yongping Liu, Juan Wang, Bohan Zhao, Zhiwei Zhao   +5 more
doaj   +1 more source

摆线泵流量特性分析及计算机仿真

Jixie chuandong, 2006
Based on the equation of action line for cycloidal pump, a geometrical mathematical model is built to solve instantaneous flow, displacement, average flow and the pulsation of the pump.
徐学忠
doaj  

Experimental research of pulsation pressure and hydrodynamic noise at the bow of underwater vehicle

Xibei Gongye Daxue Xuebao
The design of the bow of the underwater vehicle affects its hydrodynamic performance, and a better design can reduce the direct impact of water on the bow and thus reduce the hydrodynamic noise of the underwater vehicle.
HE Xing, HUANG Qiaogao, LU Bo, PAN Guang
doaj   +1 more source

Research on the Relationship Between Pressure Pulsation and Leakage Vortex Intensity in the Blade Tip Clearance Under Various Operational Conditions of Axial Flow Pumps

Fluids
Large underwater vehicles, designed for multiple cruising speeds, are required to operate under diverse conditions such as full speed, surfacing, diving, and hovering.
Xiaoqi Jia, Zhipeng Gan, Jie Liu, Xiaoqin Li, Zhe Lin, Zuchao Zhu   +5 more
doaj   +1 more source

Pulsating Flows : Experimental Equipment and its Application(Cavity Flow and Pulsating Flow)

The Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF), 2005
Unsal, Bulent, Durst, Franz
openaire   +1 more source

Analysis of the Flow Pulsation of Straight Conjugated Internal Gear Pump

Jixie chuandong, 2015
Based on flow pulsation formula of the straight internal gear pump,the straight conjugate internal gear pump is studied,the instantaneous flow rate formula is derived and the reliability of the formula is verified by experiment.The maximum and minimum of
Zhang Hui, Wang Zhonghou
doaj  

Analysis of the Flow Behavior and Pressure Fluctuation of a Pump Turbine with Splitter Blades in Part-Load Pump Mode

Energies
The internal flow of a pump turbine is unstable in part-load pump mode for small guide-vane openings, and the strong vibration caused by pressure pulsation is related to the safe and stable operation of the unit.
Wei Xiao, Shaocheng Ren, Liu Chen, Bin Yan, Yilin Zhu, Yexiang Xiao   +5 more
doaj   +1 more source