A5027550010- Aerodynamics and Acoustics in Jet Flows
- Acoustic Wave Phenomena Research
- Fluid Dynamics and Turbulent Flows
- Wind and Air Flow Studies
- Wind Energy Research and Development
- Turbomachinery Performance and Optimization
- Fluid Dynamics and Vibration Analysis
- Aerodynamics and Fluid Dynamics Research
- Vehicle Noise and Vibration Control
- Noise Effects and Management
- Computational Fluid Dynamics and Aerodynamics
- Cavitation Phenomena in Pumps
- Underwater Acoustics Research
- Wave and Wind Energy Systems
- Aerosol Filtration and Electrostatic Precipitation
- Combustion and flame dynamics
- Mechanical stress and fatigue analysis
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Vibration and Dynamic Analysis
- Heat Transfer Mechanisms
- Geotechnical Engineering and Soil Mechanics
- Offshore Engineering and Technologies
- Guidance and Control Systems
- Mechanical Behavior of Composites
- Aerospace Engineering and Control Systems
University of Southampton
2024-2025
University of Electronic Science and Technology of China
2025
University of Chinese Academy of Sciences
2023
Institute of High Energy Physics
2021-2023
Institute of Engineering Thermophysics
2020-2023
Chinese Academy of Sciences
2020-2023
Hong Kong University of Science and Technology
2017-2022
University of Hong Kong
2017-2022
Dalian National Laboratory for Clean Energy
2021
Chang'an University
2021
Centrifugal compressors play a crucial role in energy and power systems, compressor surge significantly impact their safe operation. Monitoring typical inception characteristics can effectively serve as an early warning indicator, thereby enhancing safety. This paper presents the results of acoustic experiment conducted on centrifugal setup. Four microphones were positioned front inlet to record noise emitted entered its region from near-surge state. An entropy-based method is proposed...
Surge poses a significant challenge to the safe operation of compressors. Identifying surge precursors is valuable approach for warning and has been extensively investigated, though it remains unresolved. This paper experimentally examines flow unsteadiness in centrifugal axial subsonic compressor setups. To quantitatively assess identify precursors, approximate entropy (ApEn) applied pressure sound signals. The signals are collected under two operating conditions: (1) stable points, where...
Digital twinning technology originated in the field of aerospace. The real-time and bidirectional feature data interaction guarantees its advantages high accuracy, performance scalability. In this paper digital twin was introduced to electric vehicle energy consumption research. First, an model BAIC BJEV established, then optimized verified through drum test. Based on monitoring platform, a built, it trained updated by daily new data. Eventually can be used predict verify vehicle. way...
This paper presents numerical studies on airfoil leading-edge turbulence interaction noise reduction using poro-wavy leading edges. Three different bionic treatments including wavy edges, porous and a novel combined edges are modeled. The turbulent flow field is solved the improved delayed detached eddy simulation method. aerodynamic predicted Ffowcs Williams Hawkings acoustic analogy theory. inflow Mach number approximately 0.12 with an angle of attack 0°, chord-based Reynolds 400 000....
The trailing-edge serration that imitates the silent owl wing is used as a flow control method to suppress aerodynamic noise generated from rotating wind turbine blade. Recent studies have found addition of serrations could degrade overall performance airfoil. To this end, an optimal design for airfoils with developed. Combined modeling methods aerodynamics serrations, fundamental parameters are integrated into airfoils. Specifically, based on existing multidisciplinary optimization...
In this paper, a method for planning the perching trajectory of fixed-wing unmanned aerial vehicle (UAV) based on estimation region attraction (ROA) is proposed, to expand feasible domain UAV in presence aerodynamic performance degradation and landing-limited conditions with high angle attack (AOA). According characteristics system, process first decomposed into flight landing segments, corresponding dynamic model structural are established, Lagrange function, while continuity two models...
Surge waves are commonly modeled as one-dimensional plane in the understanding of compressor surge. However, this assumption does not adequately represent physical phenomena observed under specific conditions. This study performed surge experiments on a centrifugal compressor, measuring pressure changes around onset with fast dynamic transducers arranged at same impeller inlet section but different circumferential positions. The signals analyzed by Hilbert–Huang transform, ensemble empirical...
In this study, the far-field noise from a pitching NACA 0012 airfoil was measured at Reynolds number of 6.6 × 104. The motion in sinusoidal functions with mean incident angle 0°. Cases amplitude varying 7.5° to 15° and frequency 3 8 Hz were tested, corresponding reduced 0.094 0.25. A microphone placed particle image velocimetry technique utilized study flow structures near trailing edge. short-time Fourier transformation results signals revealed that high-level narrow-band hump occurred...
As a passive flow control technique, the use of leading-edge tubercles inspired by humpback whale flippers has attracted much interest. It is believed that one mechanisms compartmentalization, which similar to way in wing fences act. However, date, there been no direct evidence for this belief. In view this, present work aims verify and quantitatively describe compartmentalization effect induced tubercles. Numerical simulation performed investigate structures on wavy airfoil with tubercles,...
The dual-ported shroud casing has two ports over the impeller section in a centrifugal compressor, different from traditional ported casing. This paper uses numerical simulations and experiments to investigate effects of on including aerodynamic performance aeroacoustics. According experimentally measured compressor map, novel finding is that dual-port treatment extends operating range by improving instability margin increasing choke flow capacity. mechanism contributing capacity increase...
The periodic variation of the flow pattern and boundary layer characteristics near trailing edge a pitching NACA (National Advisory Committee for Aeronautics) 0012 airfoil are examined experimentally in this study. mean angle amplitude were 0° 7.5°, respectively, reduced frequency varied from 0.094 to 0.157. Static cases with various angles attack tested reference. All tests conducted at low Reynolds number 66000. Particle image velocimetry was used as primary measurement visualization...
The aerodynamic operating conditions of a propeller can include complex situations where vorticity from sources upstream enter the plane. In general, when enters in concentrated form vortex, interaction between vortex and blade is referred to as blade–vortex or BVI. may affect performance well its noise production. present paper, investigations wing tip generated by lifting surface rotor plane an eight-bladed are reported. Utilizing two ends with non-symmetrical airfoil, rotation incoming...