Numerical analysis and model tests of a three-module VLFS deployed near islands and reefs

Wu, Yusen; Ding, Jing; Tian, Chao; Li, Zhiwei; Ling, Hongjie; Ma, Xiaozhou; Gao, Junliang

doi:10.1007/s40722-018-0112-3

Cited by 28 publications

(5 citation statements)

References 13 publications

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“…基于这些方程、边界条件及相关的数值方法, 形吴有生等. 中国科学: 物理学力学天文学 2018 年第 48 卷第 9 期 094602-4 http://engine.scichina.com/doi/10.1360/SSPMA2018-00164 成了可进行复杂环境条件下由多模块、连接器、系泊系统构成的超大型浮体的时域水弹性直接耦合分析方法 [13,14] 及软件THAFTS-BR.…”

Section: 基于上述理论中国船舶科学研究中心开发了船unclassified

“…20世纪80 年代中期 [2][3][4] , 将结构动力学理论与三维船舶运动势流理论 [5] 相结合, 提出了广义流固耦合界面条件 ( [6] 、三维线性水弹性力学时域分析理论 [7] 、用于分析高海情环境中大幅运动浮体结构动响应的三维非线性水弹性力学理论与数值方法 [8][9][10] 、三维弹性船模实验技术 [11,12] 及基于水弹性理论的结构设计与安全性评估技术等. 近年又发展了岛礁海域海底地形变化和复杂来浪环境中的大型浮体水弹性理论与动响应分析方法 [13,14] . 有关理论与分析方法, 及各国学者基于同样的基础理论发展的船舶水弹性分析的不同处理方法都得到了广泛的应用, 见综述文章 [11,15]与欧洲联合研究项目综述论文 [16].…”

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Three-dimensional hydroelasticity theory of ships in waves and ocean-acoustic environment with applications

Wu¹,

Zou²,

Ding³

et al. 2018

Sci. Sin.-Phys. Mech. Astron.

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Section: 基于上述理论中国船舶科学研究中心开发了船unclassified

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Three-dimensional hydroelasticity theory of ships in waves and ocean-acoustic environment with applications

Wu¹,

Zou²,

Ding³

et al. 2018

Sci. Sin.-Phys. Mech. Astron.

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“…Sturova (2008Sturova ( , 2009 investigated hydroelastic responses of homogeneous and heterogeneous elastic plates in shallow water of variable depth in the 2-D vertical plane. The wave responses of VLFS on water of variable depth were solved numerically in three-dimensional (3-D) domains using the finite element method (Kyoung et al 2005), and in the 2-D vertical plane using various methods (Wang & Meylan 2002;Belibassakis & Athanassoulis 2006;Ding et al 2017;Wu et al 2018;Yang et al 2019;Liu, Wang & Xu 2020). Recently, Ding et al (2017), Wu et al (2018) and Yang et al (2019) developed a hybrid method in which the Boussinesq equations were applied to solve the shallow-water wave field of the outer region near islands and reefs, while the Rankine source method was used to solve the hydroelastic responses of VLFS in the inner region.…”

Section: Introductionmentioning

confidence: 99%

“…(2017), Wu et al. (2018) and Yang et al. (2019) developed a hybrid method in which the Boussinesq equations were applied to solve the shallow-water wave field of the outer region near islands and reefs, while the Rankine source method was used to solve the hydroelastic responses of VLFS in the inner region.…”

Section: Introductionmentioning

confidence: 99%

Boussinesq-type equations of hydroelastic waves in shallow water

Tang,

Xiong,

Zhu

2024

J. Fluid Mech.

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Accurate computation of hydroelastic waves in shallow water is critical because many hydroelastic wave applications are nearshores, such as sea-ice and floating infrastructures. In this paper, Boussinesq assumptions for shallow water are employed to derive nonlinear Boussinesq-type equations of hydroelastic waves, in which non-uniform distribution of structural stiffness and varying water depth are considered rigorously. Application of Boussinesq assumptions enables complicated three-dimensional problems to be reduced and formulated on the two-dimensional horizontal plane, therefore the proposed Boussinesq-type models are straightforward and versatile for a wide range of hydroelastic wave applications. Two configurations, a floating plate and a submerged plate, are studied. The first-order linear governing equations are solved analytically with periodic conditions assuming constant depth and uniform stiffness, and the linear dispersion relations are subsequently derived for both configurations. For flexural-gravity waves of a floating plate, unique behaviours of flexural-gravity waves different from shallow-water waves are discussed, and a generalized solitary wave solution is investigated. A nonlinear numerical solver is developed, and nonlinear flexural-gravity waves are found to have smaller wavelength and celerity than their linear counterparts. For hydroelastic waves of a submerged plate, dual-mode analytical solutions are discovered for the first time. Numerical computation has demonstrated that a plate with decreasing submerged depth is able to transfer wave energy from the deeper water to the surface layer.

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“…However, the above studies focused on waves in the open sea. Waves in reef lagoons are meaningful in coral reef protection and ocean structure design (Ding et al 2017;Wu et al 2018). Because of the complicated topography, waves inside a lagoon are quite different from those in the open sea.…”

Section: Introductionmentioning

confidence: 99%

Observations of Typhoon Waves in a Reef Lagoon of the South China Sea

Cai

Chen

Liu

et al. 2020

Journal of Physical Oceanography

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Based on wave measurements lasting three and a half years, typhoon wave characteristics in a lagoon of the South China Sea are discussed in this paper. According to the upper boundaries of wind speed and significant wave height Hs, the maximum wave height has a similar rate of change as the maximum wind speed. The peak frequencies decrease in the approaching stage and are concentrated with an average of 0.1415 Hz in the leaving stage. The distributions of the wind and wave directions indicate that the local wind waves and the waves from the open sea propagated to the site in the approaching and leaving stages, respectively. Wind waves generated inside the lagoon are fetch-trapped, and the spectra can be described by αf(−4) or βk(−2.5) when f > fp. In addition, the measurements show that the nondimensional maximum spectrum can be estimated by the nondimensional fetch. The spectra of the waves from the open sea can be described by afp⁡(c−b)f⁡(b). Parameters a and c are determined by the nondimensional peak frequency. In addition, it is found that the peak energy density S(fp) is a linear function of g−1/2Hs5/2 for all waves.

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Numerical analysis and model tests of a three-module VLFS deployed near islands and reefs

Cited by 28 publications

References 13 publications

Three-dimensional hydroelasticity theory of ships in waves and ocean-acoustic environment with applications

Three-dimensional hydroelasticity theory of ships in waves and ocean-acoustic environment with applications

Boussinesq-type equations of hydroelastic waves in shallow water

Observations of Typhoon Waves in a Reef Lagoon of the South China Sea

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