Laboratory ``Freak Wave'' Generation for the Study of Extreme Wave Loads on Piles

Sparboom, Uwe; Wienke, Jan; Oumeraci, Hocine

doi:10.1061/40604(273)126

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…Some scholars have studied the wave force induced by freak waves. For example, Sparboom et al [8] examined the impact of freak waves on cylinders in a large-scale physical model test and studied the influence of tilt angles. They found that the maximum impact pressure of freak waves on cylinders occurred when the incoming wave direction was opposite to the cylinder's tilt direction.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Green-Water Loads and Structural Responses of Ship Bow Structures Caused by Freak Waves

Zhang

Qin

et al. 2023

Applied Sciences

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In recent decades, freak waves, characterized by their unusual high amplitude, sharp crest, and concentrated energy, have attracted researchers’ attention due to their potential threat to marine structures. Green-water loads caused by freak waves can be significant and may lead to local damage to the ship structures. Therefore, this paper focuses on the study of green-water loads and examines the structural responses of ship bow structures under the influence of the green-water loads caused by freak waves. Firstly, a three-dimensional numerical wave tank is established in which the superposition model is used to generate freak waves. Validations on the freak-wave generation, ship motion response and the wave loading are carried out to verify the present solvers. The simulation on the interaction between the freak wave and the ship are conducted to obtain the interaction process and green-water loads. Secondly, a finite element (FEM) model of the ship bow is built, on which the green-water loads are applied to calculate the structural responses. Finally, the displacement and stress of the deck and breakwater structures are analyzed. It is found that green water events caused by freak waves can generate enormous impact forces on the bow deck and breakwater, resulting in severe structural responses and even possible damage to the structures. The local strength of structures under freak waves needs to be considered in practical engineering applications.

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Section: Introductionmentioning

confidence: 99%

Numerical Study on the Green-Water Loads and Structural Responses of Ship Bow Structures Caused by Freak Waves

Zhang

Qin

et al. 2023

Applied Sciences

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A numerical study on local characteristics of predetermined irregular wave trains

Liang¹,

Yang²,

Li³

et al. 2011

Ocean Engineering

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Derivation and rogue waves of the fractional nonlinear Schrödinger equation for the Rossby waves

Geng,

Fu,

Dong

et al. 2023

Chaos: An Interdisciplinary Journal of Nonlinear Science

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The Cartesian coordinate system is not sufficient to study wave propagation on the coastline or in the sea where the terrain is extremely complicated, so it is necessary to study it in an unconventional coordinate system, fractals. In this paper, from the governing equations of fluid, the fractional nonlinear Schrödinger equation is derived to describe the evolution of Rossby waves in fractal by using multi-scale analysis and perturbation method. Based on the equation, the rogue-wave solution is obtained by the integral preserving transformation to explain some serious threats at sea.

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Laboratory ``Freak Wave'' Generation for the Study of Extreme Wave Loads on Piles

Cited by 4 publications

References 7 publications

Numerical Study on the Green-Water Loads and Structural Responses of Ship Bow Structures Caused by Freak Waves

Numerical Study on the Green-Water Loads and Structural Responses of Ship Bow Structures Caused by Freak Waves

A numerical study on local characteristics of predetermined irregular wave trains

Derivation and rogue waves of the fractional nonlinear Schrödinger equation for the Rossby waves

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