A5048687913- Cavitation Phenomena in Pumps
- Hydraulic and Pneumatic Systems
- Water Systems and Optimization
- Fluid Dynamics and Turbulent Flows
- Oil and Gas Production Techniques
- Cyclone Separators and Fluid Dynamics
- Hydraulic flow and structures
- Vibration and Dynamic Analysis
- Optical Coherence Tomography Applications
- Fluid Dynamics and Vibration Analysis
- Heat Transfer Mechanisms
- Biomimetic flight and propulsion mechanisms
- Turbomachinery Performance and Optimization
- Concrete and Cement Materials Research
- Water Quality Monitoring Technologies
- Industrial Technology and Control Systems
- Particle Dynamics in Fluid Flows
- Ultrasound and Cavitation Phenomena
- Surface Modification and Superhydrophobicity
- Advanced Fluorescence Microscopy Techniques
- Aerodynamics and Acoustics in Jet Flows
- Coal Combustion and Slurry Processing
- Marine Biology and Environmental Chemistry
- Advanced Algorithms and Applications
- Aerosol Filtration and Electrostatic Precipitation
China Jiliang University
2019-2025
China Institute of Water Resources and Hydropower Research
2024
Zhejiang University of Technology
2016-2023
Yangzhou University
2023
University of Nottingham Ningbo China
2023
Guangdong University of Technology
2021-2023
Zhejiang University of Water Resource and Electric Power
2023
Qingdao University of Technology
2021-2022
Qingdao University of Science and Technology
2022
China Agricultural University
2012-2017
Cavitation-induced flow instabilities in vortex pumps critically degrade hydraulic performance and operational lifespan. This study investigates the evolution of vapor cavities within across various cavitation states using both numerical simulations experimental analysis. The unsteady dynamics impeller channel are examined, relationships among pressure pulsations, volume, volume fraction analyzed. As intensifies, expands progressively. Notably, time required for to expand during critical is...
Abstract Spider silk is a kind of natural biomaterial with superior performance. Its mechanical properties and biocompatibility are incomparable those other artificial materials. This article first summarizes the structure characteristics spider silk. It shows great research value bionic Then, development status materials reviewed from perspectives material application. The part mainly describes biocomposites based on proteins fibers, nanomaterials man-made fiber spider-web structures....
It is of great significance to predict the energy performance centrifugal pumps for improvement pump design. However, complex internal flow always affects prediction pumps, particularly under low-flow operating conditions. Relying on data-fitting method, a multi-condition method proposed, where relationship incorporated into particle swarm optimization algorithm, and model optimized by automatically meeting constraints. Compared with experimental results, multiple conditions well predicted...
Francis turbines are most widely used in hydropower due to their characteristics which include a fast response and wide time-scale operation. The vortex rope inside is common flow phenomenon, always causes strong vibration, pressure pulsations, fatigue load, even serious failure of the components. Vortex suppression methods can effectively change velocity distribution field draft tube, reduce volume amplitude pulsation, inhibit development cavitation erosion, improve operation stability...
To investigate the variations in flow field of centrifugal pumps with different cavitation numbers, this study utilized shear stress transport k–ω turbulence model and Zwart–Gerber–Belamri to examine correlation between stall vortices flow. The findings indicate that consistently coincides formation vortices, distribution mirrors pattern vortex structure. Cavitation tends develop aggregate around obstructing a significant portion inlet areas within channel. As number decreases, both area...
Vortex pumps are widely used in wastewater treatment, food processing, and the chemical industry. In this study, combined experimental numerical approaches employing rigid vorticity method were to investigate vortex structures flow characteristics within pump chamber. Quantitative analyses based on velocity moment, entropy production, energy distribution conducted elucidate evolution of transfer. Results indicate that run-through region sustains high-speed flow, whereas circulating generates...
Pressure fluctuation may cause high amplitude of vibration double-suction centrifugal pumps, but the impact impeller stagger angles is still not well understood. In this paper, pressure experiments are carried out for five configurations with different by using same test rig system. Results show that exert negligible effects on characteristics head and efficiency. The distributions fluctuations relatively uniform along suction chamber wall, maximum reached near inlet tongue region. affected...
Purpose Rotating stall is an unsteady flow phenomenon that causes instabilities and low efficiency in pumps. The purpose of this paper to investigate the rotating characteristics behavior cells a centrifugal pump impeller at rates. Design/methodology/approach A developed large eddy simulation with dynamic mixed nonlinear model performed evaluate impeller. field through analyzed under three typical Frequency spectrum analysis are carried out on series pressure fluctuation get characteristics....
To enhance the stability of photovoltaic power grid integration and improve prediction accuracy, a method based on an improved snow ablation optimization algorithm (Good Point Vibration Snow Ablation Optimizer, GVSAO) Bi-directional Long Short-Term Memory (Bi-LSTM) network is proposed. Weather data divided into three typical categories using K-means clustering, normalization performed minmax method. The key structural parameters Bi-LSTM, such as feature dimension at each time step number...