A5102712296- Coastal and Marine Dynamics
- Ocean Waves and Remote Sensing
- Tropical and Extratropical Cyclones Research
- Fluid Dynamics Simulations and Interactions
- Wave and Wind Energy Systems
- Structural Analysis and Optimization
- Vibration and Dynamic Analysis
- Textile materials and evaluations
- Aerospace Engineering and Energy Systems
- Geomechanics and Mining Engineering
- Oceanographic and Atmospheric Processes
- Underwater Acoustics Research
- Flood Risk Assessment and Management
- Hydrology and Sediment Transport Processes
- Spacecraft and Cryogenic Technologies
- Geotechnical Engineering and Underground Structures
- Fluid Dynamics and Heat Transfer
- Dam Engineering and Safety
- Microbial Applications in Construction Materials
- Advanced Materials and Mechanics
Dalian University of Technology
2013-2024
Guangdong Ocean University
2021-2024
Shanghai Jiao Tong University
2003-2015
Shanghai Ocean University
2014
Harbin Institute of Technology
2007
Dana (United States)
2001
The spilling and plunging breakers in surf zone are simulated by the non-hydrostatic shock-capturing model with or without turbulent dissipation/model. Geometric dynamic breaking criteria wave energy flux investigated to show differences on onset dissipation. Comparisons between k - ϵ laminar data indicate that both of them give reasonable results, but absence dissipation would cause seaward movement point, underestimation maximum height, overprediction loss. And presents greater change for...
In actual wave fields, short-crested behavior is typically observed due to the superposition of components with varying frequencies and directional distributions. However, most previous studies have simplified these as two-dimensional waves, neglecting impact distribution leading an incomplete understanding its influence on nonlinear characteristics. This study investigates multi-directional focused waves a single frequency in laboratory setting. The comparison reveals that, unlike...
The effect of the non-uniform bathymetry on nonlinear wave dynamics for freak is investigated experimentally, with emphasis interrelations between different behaviors resulting from various geometric parameters and spectral analysis. Both frequency modulation phase coupling can be provoked by decreasing water depth weakened after top peak bar, exhibition transferring energy to high-frequency contents over shoal supports that reflect well. consistent change Hilbert spectrum bicoherence shows...
Abstract To ensure bridge safety, the flood risk analysis is significant important. However, due to small size and large number of piers in short-distance multi-bridge system, extremely long calculation time low efficiency numerical model are induced by mesh number. In this paper, a assessment system with short distance was established improve based on finite volume method combined Delaunay adaptive refinement method. The calculated water level refined non-refined compared experimental data...
The load bearing capacity of an ETFE (ethylene-tetra-fluoro-ethylene) inflatable tube is tested in this paper, and a comparative study two wrinkling theories, the bifurcation theory tension field theory, carried out for analysis tube. Results obtained from experiment reveal limitations on analysis. load-displacement curves beams under bending are compared with experimental results; using show coincidence curves, but have noticeable deviations between calculated results.
Due to significant influence on the safety of marine structures, interaction between extreme waves and structures is a crucial area study in science. This paper focus verification solitary wave meshless SPH model application semi-submersible structures. A propagation established based method combined with Rayleigh theory, quintic kernel function, artificial viscosity, Symplectic Method. The accuracy validated by comparing calculated height theoretical value. results relative particle spacing...
Single Gaussian wave groups with different initial steepness ε0 and width N are produced in laboratory finite depth to study the nonlinear evolution, extreme events breaking. The results show that larger will evolve be several envelope solitons (short groups). By analyzing geometric parameters, a break evolution of elevation asymmetric parameters after may an indicator for inception refocus maximal moving middle, namely, down-shift occurs. analysis surface elevations HHT (Hilbert-Huang...
The spilling-breaking waves that appear in chirped wave packets are studied a two-dimensional channel. These produced by superposing with gradually decreasing frequencies. analysis focuses on the nonlinear characteristics, energy variation, and transformation during evolution breaking of groups. Ensemble empirical mode decomposition is used to analyze non-breaking variations intrinsic functions (IMFs). It found third-order IMF component source dissipation second-order IMF, which represents...
The submergence depth directly affects the safety of semi-submersible marine structures due to that significantly impacts on hydrodynamic characteristics and wave loads excited by extreme wave. This paper studies influence load establishing a numerical model interaction between solitary waves based SPH Rayleigh theory. Furthermore, equations for transmission coefficient, reflection are fitted. calculated heights propagation test case in good agreement with theoretical values. maximum...
By neglecting the viscosity of fluid and rotation in flow, theory potential flow cannot accurately predict hydrodynamic forces on structures under significant viscous effects. In this study, effects liquid a horizontal circular cylinder underwater with large-amplitude forced oscillation were investigated. The study used two-dimensional two-phase wave tank model based using OpenFOAM® package. numerical calculations carried out different types (i.e., viscosities). are visually shown by...
To investigate the characteristics of semi-submersible against extreme waves, a model solitary waves interaction with was established based on meshless SPH method and Rayleigh's theory. The wave surface load results for an test case between partially submerged rectangular obstacles are in good agreement OpenFOAM accompanying maximum relative errors 3.4%. calculated show that overtopping occurs height H0 > 0.2 m unsubmerged ratio 0.33, while decreases increase water depth. WLA z direction is...