Dynamic analysis of breaking wave impact on a floating offshore wind turbine via smoothed particle hydrodynamics

IF 4 2区工程技术 Q1 ENGINEERING, CIVIL

Marine Structures Pub Date : 2024-11-21 DOI:10.1016/j.marstruc.2024.103731

Shengzhe Wang , Wei-Liang Chuang

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引用次数: 0

Abstract

This work leverages Lagrangian smoothed particle hydrodynamics (SPH) to explore the structural and hydrodynamic response of floating offshore wind turbines (FOWT) subject to impulsive breaking waves. The SPH formulation was first validated against breaking wave impact on a model tension leg platform (TLP) which demonstrated good consistency with experimental results. Following validation, wave focusing was utilized to generate both breaking and nonbreaking extreme waves impacting a moored semi-submersible FOWT at full scale. Impulsive forces and accelerations resulting from the plunging breaker were observed to exceed that of nonbreaking waves by up to 70 % and 230 %, respectively, and were highly sensitive to the wave impingement location relative to the FOWT. However, wave breaking did not appear to significantly influence rigid body motions and yielded lower mooring tensions than its nonbreaking counterpart due to the short duration of impact. This work ultimately demonstrates the applicability of SPH for the simulation of breaking wave interactions with floating bodies and provides further impetus towards the study of FOWTs under such conditions.

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通过平滑粒子流体力学分析破浪对漂浮式海上风力涡轮机的动态影响

这项研究利用拉格朗日平滑粒子流体力学（SPH）来探索浮式海上风力涡轮机（FOWT）在冲击破浪作用下的结构和流体力学响应。首先根据破浪对模型张力腿平台（TLP）的影响对 SPH 公式进行了验证，结果表明与实验结果十分吻合。验证结束后，利用波聚焦生成了冲击全尺度系泊半潜式 FOWT 的破浪和非破浪极端波浪。据观察，由猛烈破浪产生的冲击力和加速度分别超过非破浪的 70% 和 230%，并且对相对于 FOWT 的波浪冲击位置高度敏感。不过，由于冲击持续时间较短，破浪似乎不会对刚体运动产生重大影响，而且与非破浪相比，破浪产生的系泊张力较低。这项工作最终证明了 SPH 在模拟破浪与浮体相互作用方面的适用性，并进一步推动了在这种条件下对 FOWT 的研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Marine Structures 工程技术-工程：海洋

CiteScore

8.70

自引率

7.70%

发文量

157

审稿时长

6.4 months

期刊介绍： This journal aims to provide a medium for presentation and discussion of the latest developments in research, design, fabrication and in-service experience relating to marine structures, i.e., all structures of steel, concrete, light alloy or composite construction having an interface with the sea, including ships, fixed and mobile offshore platforms, submarine and submersibles, pipelines, subsea systems for shallow and deep ocean operations and coastal structures such as piers.