基于AQWA的波浪中多柱体结构水动力分析

赵志垒, 周子豪

doi:10.16411/j.cnki.issn1006-7736.2025.02.004

大连海事大学学报 >

2025 , Vol. 51 >Issue 2: 32 - 38

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2025.02.004

基于AQWA的波浪中多柱体结构水动力分析

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(1.大连海事大学航海学院，辽宁大连 116026; 2. 世界海事大学瑞典斯科讷省马尔默市 20124)

赵志垒（1984 — ），男，硕士，讲师，研究方向：水运工程，海上交通安全。E-mail：hdzzl@dlmu.edu.cn 周子豪（2001 — ），男，硕士生，研究方向：国际运输与物流。E-mail：z1044326918@163.com

收稿日期: 2024-02-03

修回日期: 2024-02-03

录用日期: 2024-02-03

网络出版日期: 2024-02-03

基金资助

国家自然科学基金面上项目（52171342）

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The hydrodynamic analyses of a multi-cylinder structure in waves based on AQWA

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(1. Navigation College, Dalian Maritime University, Dalian 116026, China; 2. World Maritime University, Malmö, Sweden 20124)

Received date: 2024-02-03

Revised date: 2024-02-03

Accepted date: 2024-02-03

Online published: 2024-02-03

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摘要

采用AQWA软件对波浪中四柱结构物的水动力开展研究，分析了圆柱体的一阶波浪力和二阶波浪力随波浪频率的变化关系，给出了不同频率下圆柱体周围特征点处的波浪升高以及柱体周围自由面的波面分布。研究结果表明：在kr＜0.5的低频区域时，各圆柱体所受的一阶纵荡波浪力峰值相差不大；在kr ＞0.5的中高频区域时，圆柱一阶纵荡波浪力呈现明显振荡特征，并在kr = 1.68附近达到最大峰值，但是各柱体所受一阶垂荡波浪力区别并不明显。四柱结构纵荡二阶波浪力从结构内指向结构外，随着波长增加，波浪透过四柱体的能力越强，但是在kr = 1.68附近时，四柱体内部空间波浪发生明显的干涉共振，导致柱体周围波浪升高十分显著。本研究揭示了波浪中多柱体之间水动力干扰和共振现象产生的规律，可以为后续海上风机平台桩基受力设计提供一定理论参考。

关键词： 多柱体结构; 势流方法; 波浪力; 波浪升高; AQWA

本文引用格式

赵志垒, 周子豪 . 基于AQWA的波浪中多柱体结构水动力分析[J]. 大连海事大学学报, 2025 , 51(2) : 32 -38 . DOI: 10.16411/j.cnki.issn1006-7736.2025.02.004

Abstract

The hydrodynamics of four-column structures in waves is studied by using AQWA software. The relationships of the first order wave force and the second order wave force with wave frequency are analyzed, and the wave elevations at the characteristic points around the cylinder and the wave surface distribution around the cylinder at different frequencies are given. The results of research shows the following conclusions: When kr < 0.5 in relatively low frequency region, the peak values of the first order surge force of each cylinder do not show much differences; however, the first-order longitudinal wave forces of the cylinder show obvious oscillating characteristics in relatively middle and high frequency region when kr ＞ 0.5, the maximum peak value is reached near kr = 1.68, but the difference of the first order heave wave force on each column is not obvious. The second order wave force of the four-column structure is directed from inside of the structure to the outside of the structure. With the increase of wavelength, the transmitted ability of the wave passing through the four-column body becomes stronger. However, when kr is around 1.68, the wave interference resonance occurs in the internal space of the four-column body, resulting in a significant rise of the wave around the column. This study reveals the law of hydrodynamic interference and resonance phenomenon between multiple cylinders in waves, which can provide theoretical reference for the subsequent design of pile foundation of offshore wind turbine platform.

Key words： multi-column structure; potential flow method; wave force; wave elevation; AQWA

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