Results 31 to 40 of about 271,894 (285)

Mathematical models of gear rattle in Roots blower vacuum pumps [PDF]

, 2006
This paper is concerned with the modelling of gear rattle in Roots blower vacuum pumps. Analysis of experimental data reveals that the source of the noise and vibration problem is the backlash nonlinearity due to gear teeth losing and re-establishing ...
Wilson, RE, Homer, Martin, Homer, ME, Wilson, R. Eddie, Mason, Joanna, Mason, J, Mason, JF   +6 more
core   +1 more source

Evolution of Wake Vortices and Energy Characteristics of Mixed-flow Pumps Under Stall Conditions [PDF]

Journal of Applied Fluid Mechanics
Unsteady wake dynamics and associated energy dissipation mechanisms in mixed-flow pumps remain critical challenges detrimentally affecting operational stability and efficiency, particularly under off-design operating conditions.
Y. Chen, W. Li, L. Ji, S. Li, Y. Long
doaj   +1 more source

Improvement of Intake Structures in a Two-Way Pumping Station with Experimental Analysis

Applied Sciences, 2020
Pumping stations are important regulation facilities in a water distribution system. Intake structures can generally have a great influence on the operational state of the pumping station.
Yanjun Li, Rong Lu, Huiyan Zhang, Fanjie Deng, Jianping Yuan   +4 more
doaj   +1 more source

The Influence of Flow Rates on Pressure Fluctuation in the Pump Mode of Pump-Turbine with Splitter Blades

Applied Sciences, 2020
This paper takes a pump-turbine as the research subject and, based on the Computational Fluid Dynamics (CFD) numerical method and combined with test data, investigates the pressure fluctuation characteristics in the pump mode and analyzes the pressure ...
Ping Huang, Yajing Xiao, Jinfeng Zhang, Haikun Cai, Haiqin Song   +4 more
doaj   +1 more source

Influence of Cutter Head on Cavitation of Non-Jammed Submerged Grinder Pump

Applied Sciences, 2022
For the investigation of the cavitation of non-jammed submersible grinder pumps, a GSP-22 model pump was numerically simulated based on CFX. ICEM-CFD was applied to a structured mesh for the flow components.
Rongsheng Zhu, Zhuang Qiang, Zhenwei Wang, Qiang Fu, Yun Long   +4 more
doaj   +1 more source

Intelligent Diagnosis towards Hydraulic Axial Piston Pump Using a Novel Integrated CNN Model

Sensors, 2020
As a critical part of a hydraulic transmission system, a hydraulic axial piston pump plays an indispensable role in many significant industrial fields.
Shengnan Tang, Yong Zhu, Shouqi Yuan, Guangpeng Li   +3 more
doaj   +1 more source

Geometrical Optimization of Pump-As-Turbine (PAT) Impellers for Enhancing Energy Efficiency with 1-D Theory

Energies, 2020
This paper presents a multi-objective optimization strategy for pump-as-turbines (PAT), which relies on one-dimensional theory and analysis of geometrical parameters.
Longyan Wang, Stephen Ntiri Asomani, Jianping Yuan, Desmond Appiah   +3 more
doaj   +1 more source

The Cavitation Nuclei Transient Characteristics of Lennard-Jones Fluid in Cavitation Inception

Polish Maritime Research, 2018
In the field of ocean engineering, cavitation is widespread, for the study of cavitation nuclei transient characteristics in cavitation inception, we applied theoretical analysis and molecular dynamics (MD) simulation to study Lennard-Jones (L-J) fluid ...
Qiang Fu, Benying Zhang, Yuanyuan Zhao, Rongsheng Zhu, Gang Liu, Mengyuan Li   +5 more
doaj   +1 more source

Session B2: VisAdvies Protocol for Testing and Evaluating Pumping Station Pumps on Fish Survivability [PDF]

, 2015
Presenting Author Bio: Hendry Vis works in the Netherlands at VisAdvies for seven years as a project leader. He is specialized in telemetry projects.
Vis, Hendry, de Bruijn, Quincy, Kemper, Jan H., Cooper, Frank   +3 more
core   +3 more sources

Comprehensive Research on the Effects of Different Launch Conditions on Pump-jet Propulsor Performance [PDF]

Journal of Applied Fluid Mechanics
This paper compares the cavitation of a pump-jet propulsor under different launch conditions and discusses the effects of cavitation on the performance and noise of the pump-jet propulsor rotor blade.
Q. Fu, Y. Duan, W. Shi, H. Li, R. Zhu
doaj   +1 more source