A5100715566- Cavitation Phenomena in Pumps
- Hydraulic and Pneumatic Systems
- Hydraulic flow and structures
- Water Systems and Optimization
- Oil and Gas Production Techniques
- Geomechanics and Mining Engineering
- Fluid Dynamics and Turbulent Flows
- Fluid Dynamics and Vibration Analysis
- Flow Measurement and Analysis
- Rock Mechanics and Modeling
- Cyclone Separators and Fluid Dynamics
- Fluid Dynamics Simulations and Interactions
- Advanced Thermoelectric Materials and Devices
- Rocket and propulsion systems research
- Heat Transfer and Optimization
- Computational Fluid Dynamics and Aerodynamics
- Refrigeration and Air Conditioning Technologies
- Hydrology and Sediment Transport Processes
- Geoscience and Mining Technology
- Ship Hydrodynamics and Maneuverability
- Geotechnical and Geomechanical Engineering
- Particle Dynamics in Fluid Flows
- Coal Properties and Utilization
- Oceanographic and Atmospheric Processes
- Coal Combustion and Slurry Processing
Yangzhou University
2014-2025
Zhengzhou University
2023-2024
Kaili University
2024
Ministry of Agriculture and Rural Affairs
2023
Institute of Food Science and Technology
2023
Jiangnan University
2015-2023
Chongqing University
2022
Jinchuan (China)
2021
Hohai University
2002-2021
Air Force Engineering University
2018
Following the retrofit of pump sump, there is a high risk inducing Combined Submerged Vortex (CSV), which consists roof-attached vortex (RAV) and floor-attached (FAV). This formation can lead to irregular pressure fluctuations, adversely affecting unit's performance compromising stability energy conversion. study aims investigate spatiotemporal evolution CSV its associated fluctuation characteristics in closed sump. High-speed visualization tests are conducted on transparent closed-loop test...
A self-priming centrifugal pump can be used in various areas such as agricultural irrigation, urban greening, and building water-supply. In order to simulate the gas-water two-phase flow process of a pump, unsteady numerical calculation typical was performed using ANSYS Computational Fluid X (ANSYS CFX) software. It found that whole divided into three stages: initial stage, middle final stage. Moreover, time stages accounts for small percentage process, while stage is main further determines...
The clearance existing between the impeller rim and adjacent shroud within pump configuration establishes conducive circumstances for initiation of cavitation. bubbles generated by cavitation will flow forward with water, blocking channel, result in degradation performance. When is severe, vibration noise be generated. impact formed collapse seriously erode blades form pits on blade surfaces. Drawing upon outcomes derived from numerical simulations, this paper investigates relationship tip...
The generation of stall conditions will directly affect the hydraulic and energy characteristics water jet propulsion pump. Utilizing entropy theory, this study conducts a comparative analysis loss distribution across each pump device component under varying flow conditions. investigation delineates variation with changes in rate, revealing that impeller inlet duct emerge as primary contributors to system. Through patterns rate design two for section, elucidates these sections. aims provide...
The numerical method on a double-channel sewage pump was studied, while the corresponding experimental result also provided. On this basis, influence of wall roughness performance deeply studied. results showed that there critical value roughness. When less than value, it had great performance, including head, efficiency, and shaft power. As increased, head efficiency were continuously reduced, power increased. Otherwise, opposite true. effect hydraulic loss much smaller disk friction power,...
Abutment pressure distribution is different when a longwall panel passing through the abandoned gate roads in damaged coal seam. According to geological condition of E13103 Cuijiazhai Coal Mine China, theoretical analysis and finite element numerical simulation were used determine front characteristics face 70, 50, 30, 20, 10, 5 m from roadways. The research results show that influence range abutment 40 45 outby face, peak value related distance between When roadways reduced 50 10 m, kept...
Abstract The hydrostatic journal bearing equipped with a carbon-fiber-reinforced carbon-based porous bushing is employed in the hydraulic turbomachine. exhibits high load capacity, but may unduly consume pressurized lubricant. This study aims to maximize capacity and minimize feeding power. radius, nominal clearance, length, thickness, pressure, material permeability are selected optimize. A fast optimization method proposed, integrating an in-house solver (PBS), sampling method, surrogate...
Mohr-Coulomb (MC) strength criterion has been widely used in many classical analytical expressions and numerical modeling due to its simple physical calculation, but the MC is not suitable for describing failure envelope of rock masses. In order directly apply parameters or slope stability analysis, scholars established a converting Hoek-Brown (HB) equivalent parameters. However, consistency HB calculating critical acceleration needs be further explored confirmed. Therefore, are converted...
Vortices always happen in the forebay and sump of a lateral pumping station, reducing its efficiency wasting extra electric power. This study utilizes computational fluid dynamics (CFD) technology model test method to investigate distribution vortices station Y-shaped channel. Since vortex is accompanied by energy dissipation, entropy production theory also introduced analyze behaviors anti-vortex bottom sill. The research results indicate that verify accuracy CFD. sill can effectively...