Study on Transient Gap Resonance with Consideration of the Motion of Floating Body

Gao, Junliang; Lyu, Jing; Wang, Jinghua; Zhang, Jian; Liu, Qian; Zang, Jun; Zou, Tao

doi:10.1007/s13344-022-0087-7

Cited by 60 publications

(26 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the complexity of wave models increases, in pursuit of more precise simulation results for wave surfaces, Computational Fluid Dynamics (CFD) methods have gradually evolved, including Smoothed Particle Hydrodynamics (SPH) [26], Finite Volume Method (FVM) [27], and others. Gao et al carried out the research on the transient gap resonance with consideration of the motion of floating body by using OpenFOAM [28] and Gong et al simulated the transient fluid resonance phenomenon within the narrow gap between two adjacent boxes, which is excited by incident-focused waves with various spectral peak periods and focused wave amplitudes [29]. These cases demonstrate the good effectiveness of CFD methods in the application of refined flow field and wave field simulation.…”

Section: Introductionmentioning

confidence: 99%

The Propagation Velocity and Influences of Environmental Factors of Deterministic Sea Wave Prediction in the Long Crest Wave

Wang,

Chen,

et al. 2024

JMSE

View full text Add to dashboard Cite

Ocean waves are one of the leading environmental factors that cause motion of the ocean’s structure. Wave prediction is of great significance for the safety of marine structures. The deterministic sea wave prediction (DSWP) has been focused on because it provided an accurate temporal wave surface. The propagation velocity of wave components is one of the critical problems in DSWP. In this paper, the research of propagation velocity is focused on. The Taylor expansion to wave number is used to prove that the group velocity is the propagation velocity of wave components. The simulated irregular long crest wave data is generated. Utilizing the simulated data, the calculated wave surfaces based on group velocity are consistent with the simulated results. Meanwhile, the comparisons of calculated results based on the group velocity and phase velocity are given. Then, a tank experiment is set to verify the prediction results. To further investigate the prediction performance under different conditions, the influences of environmental factors, including the wind speed, water depth and sea state are analyzed in this paper.

show abstract

Section: Introductionmentioning

confidence: 99%

The Propagation Velocity and Influences of Environmental Factors of Deterministic Sea Wave Prediction in the Long Crest Wave

Wang,

Chen,

et al. 2024

JMSE

View full text Add to dashboard Cite

show abstract

“…Due to their direct impact on the coastal regions and offshore structures, extreme wind-generated ocean waves have gained increasing attention in the research community in the past century. The effect of extreme waves manifests itself in different forms of impact including erosion and inundation of beach-dune systems [1], overtopping of coastal and offshore structures such as seawalls [2], harbors [3,4], and gas and oil production systems [5]. Hurricane-induced extreme waves are among the other major threats that affect coastal regions as they can cause extensive erosion and flooding of coastal urban regions.…”

Section: Introductionmentioning

confidence: 99%

A Multidecadal Assessment of Mean and Extreme Wave Climate Observed at Buoys off the U.S. East, Gulf, and West Coasts

Jamous

Marsooli

2023

JMSE

View full text Add to dashboard Cite

The current understanding of wind-generated wave climate from buoy-based measurements is mainly focused on a limited number of locations and has not been updated to include measurements in the past decade. This study quantifies wave climate variability and change during the historical period of 1980–2020 through a comprehensive analysis of wave height measurements at 43 buoys off the U.S. Pacific, Atlantic, and Gulf of Mexico Coasts. Variabilities and trends in the annual and monthly mean and 95th percentile significant wave heights (SWH) and the number of extreme wave events are quantified for the cold and warm seasons. We calculate the SWH long-term and decadal trends, and temporal variabilities using the ordinary least squares regression and coefficient of variation, respectively. Independent extreme wave events are identified using a method based on the peaks-over-threshold and the autocorrelation function, which accounts for the geographical variation in the timespan between independent extreme events. Results show that the warm season’s interannual variabilities in monthly and annual SWH are smaller in the Pacific while larger in the Atlantic and Gulf, with the largest variabilities observed at buoys in the Gulf and lower latitudes of the Atlantic. Strong significant alternating decadal trends in SWH are found in the Pacific and Atlantic regions. Buoys in the Atlantic and Gulf regions have experienced higher numbers of extreme wave events (anomalies) compared to the Pacific region. In general, the long-term trend in the number of extreme events during the cold season is positive at buoys located at higher latitudes but negative at lower latitudes.

show abstract

“…Although gap resonance has been extensively investigated in the literature, most studies considered fixed marine structures in close proximity [21,[24][25][26][27][28][29][30][31][32][33] or structures with forced motions [34][35][36]. In many real cases, however, marine structures are allowed to freely move with six or less degrees of freedom (DOF) under wave actions [1,[37][38][39]. From the perspective of practical engineering application, it is of great significance to study the gap resonance for floating bodies with fully or partially free motions.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Hydrodynamic Performance of a Wave Energy Converter in an Integrated Cylindrical Wave Energy Converter-Type Breakwater System

Ding

Zang

Jin

et al. 2023

Journal of Offshore Mechanics and Arctic Engineering

View full text Add to dashboard Cite

Wave energy converters (WECs) are built to extract wave energy. However, this kind of device is still expensive for commercial utilisation. To cut down the cost of WECs by sharing the construction cost with breakwaters, an integrated cylindrical WEC-type breakwater system that includes a cylindrical WEC array in front of a very long breakwater is proposed to extract wave energy and attenuate incident waves. This paper aims to optimise the performance of the integrated cylindrical WEC-type breakwater system. A computational fluid dynamics tool, OpenFOAM®, and a potential flow theory-based solver, HAMS®, are utilised. OpenFOAM® provides viscosity corrections to a modified version of HAMS® in order to accurately and efficiently predict the integrated system's performance. Parametric studies are conducted to optimise the integrated system, and a novel setup with an extra arc structure is found to significantly improve the performance of the integrated system.

show abstract

Study on Transient Gap Resonance with Consideration of the Motion of Floating Body

Cited by 60 publications

References 47 publications

The Propagation Velocity and Influences of Environmental Factors of Deterministic Sea Wave Prediction in the Long Crest Wave

The Propagation Velocity and Influences of Environmental Factors of Deterministic Sea Wave Prediction in the Long Crest Wave

A Multidecadal Assessment of Mean and Extreme Wave Climate Observed at Buoys off the U.S. East, Gulf, and West Coasts

Optimization of the Hydrodynamic Performance of a Wave Energy Converter in an Integrated Cylindrical Wave Energy Converter-Type Breakwater System

Contact Info

Product

Resources

About