A5027977709- Ocean Waves and Remote Sensing
- Oceanographic and Atmospheric Processes
- Coastal and Marine Dynamics
- Tropical and Extratropical Cyclones Research
- Methane Hydrates and Related Phenomena
- Underwater Vehicles and Communication Systems
- Fluid Dynamics Simulations and Interactions
- Underwater Acoustics Research
- Arctic and Antarctic ice dynamics
- Radio Wave Propagation Studies
- Earthquake and Tsunami Effects
- Advanced Algorithms and Applications
- Geotechnical Engineering and Underground Structures
- Navier-Stokes equation solutions
- Simulation and Modeling Applications
- Advanced Mathematical Physics Problems
- Marine and coastal ecosystems
- Remote Sensing and Land Use
- Oil Spill Detection and Mitigation
- Precipitation Measurement and Analysis
- Seismic Waves and Analysis
- Ionosphere and magnetosphere dynamics
- Aquatic and Environmental Studies
- Atmospheric aerosols and clouds
- Ship Hydrodynamics and Maneuverability
National University of Defense Technology
2018-2024
PLA Army Engineering University
2011-2017
China Academy of Space Technology
2008
The vertical inhomogeneous structure of an internal solitary wave (ISW) in a continuous density pycnocline and its force exerted on horizontal transverse cylinder are investigated theoretically experimentally. Dubreil–Jacotin–Long equation is used to describe the ISW, formula for calculating proposed. ISW experimentally measured large stratified fluid flume. It shown that characterized by both distributions envelopes amplitudes. flow field shear distribution velocity above below pycnocline,...
The propagation of elevation internal solitary waves (ISWs) over a large triangular ridge was investigated experimentally in stratified fluid flume. characteristics the ISWs were measured by using real-time wave measuring instrument and particle image velocimetry, respectively. At front slope ridge, obvious accumulation appeared, waveform distorted broadened, ISW amplitude increased slightly, phase velocity decreased suddenly, lower layer flow significantly. In region top, counterclockwise...
Two internal solitary waves (ISWs) with very long fronts observed by synthetic aperture radar (SAR) images in the northern South China Sea (NSCS) are comparatively analyzed based on oceanic reanalysis data and Korteweg–de Vries (KdV) theory. The differences environmental parameters, wave half-width, amplitude of two ISW distinct environments studied. In presence a weak westward surface current approximately 0.05 m/s, values linear speed increase up to 0.056 retrieved amplitudes decrease 14...
In a stratified fluid tank, experiments on the propagating, shoaling and breaking of internal solitary waves over gentle slope similar to topography in northeast South China Sea are conducted. The qualitative analysis evolving characteristics is accomplished by use dye-tracing technique, their quantitative measurement carried out using multi-channel conductivity-probe arrays. It shown that due effect with large amplitude restrained, but small magnified. will also lead decrease propagation...
This paper studies the characteristics of internal waves induced by motion a submerged body through combination experimental and numerical methods. First, deploying an array conductivity probes in experiment, temporal evolution wave at plane probe is obtained compared with simulation results based on Navier–Stokes equations, thereby validating accuracy Computational Fluid Dynamics (CFD) model. Subsequently, utilizing CFD calculations, further exploration conducted spatiotemporal distribution...
The configuration of internal solitary wave (ISW) over a ridge terrain will largely increase the uncertain factors threatening safety for marine architecture and submerged vehicle. Laboratory experiments are conducted to examine an ISW propagating its interaction with slender body in large-type gravity stratified fluid tank. evolution characteristics is measured by using multi-channel conductivity-probe arrays dyeing identification method, action on exerted set three-component force sensor....
The Mach effect induced by the oblique wave-wave interactions of internal solitary waves is a special phenomenon ocean and also main reason generating large amplitude wave, while they can cause it damage even crash as engineering structures or underwater vehicles encounter wave with ampiltude in ocean.In order to simulate interaction thermocline marine environment control laboratory, two vertical bottomless barrels are placed fresh/saline water's two-layer fluid.So mixed water region called...
A measurement technique of hydrodynamic load internal waves in a stratified tank was developed. By means accurately measuring slight variations wave forces exerted on slender body the tank, their interaction characteristics were determined. It is shown that through establishing similarity between model scale fluid and full numerical simulation obtained results are confirmed to be correct.
Abstract The basic elements of internal solitary waves (ISWs) were obtained by vertically placed sensors in the laboratory experiment and in-situ observation. vertical characteristics amplitude waveform are analysed experimentally observationally. Then experimental observational results compared with theoretical model. study shows that amplitude-frequency relationship is closer to two-layer model while more approaching continuously stratified Experimental reveal ISWs increase first then...
The experimental study on the interaction between a mode-2 internal solitary wave (ISW) and horizontal transverse cylinder has been carried out in large gravity-stratified fluid flume. One kind of making-wave method “rotating-blade-gate” is proposed to achieve simulation standard ISW laboratory conductivity probe array particle image velocimetry are used measure its wave-flow structure with cylinder, micro-amplitude force sensor forces model. It shown that geometric characterized by convex...
Abstract The second mode internal solitary wave (Mode-2 ISW) and its wave-induced flow field structure are investigated by conducted physical experiments in a large stratified fluid flume. Mode-2 ISW is generated the method of gravity collapse fluid, measurements wave-flow obtained combined conductivity probe array particle image velocimetry (PIV). influencing factors were analysed quantitatively. results reveal characteristic waveform density effect amplitude on shear characteristics induced field.
In order to reveal the complex structural characteristics of internal solitary waves (ISWs) in actual ocean, an experimental study vertical structure ISWs continuous pycnocline (a transition layer with sharp density changes) was conducted a stratified fluid flume. The gravity collapse method used generate ISWs, and their wave-flow fields were measured using coupled measurement technique. investigated as applicability Dubreil–Jacotin–Long (DJL) equation. results show that waveform contains...