摘要
传统箱型浮式防波堤结构形式简单,安装方便,然而对长波消浪效果有限;为了有效提高这类浮式防波堤的消浪性能,提出了一种带三角形翼板的新型浮式防波堤结构形式。首先,基于黏性不可压缩流体动力学理论,建立了浮式防波堤流固耦合数值计算模型,并与文献数据对比验证了其适用性和可行性;接着在不同波浪要素工况下,数值分析了该新型防波堤的消浪性能,计算结果显示当翼板角度为22.5°时消浪性能达到最优;在此基础上,进一步分析了该角度下箱体不同吃水深度对消浪效果的影响。对涡量场和速度场的分析结果显示:含三角形翼板浮式防波堤不仅通过翼板反射作用减少透过波浪,也通过形成涡流,有效耗散入射波浪能,从而其消浪性能显著优于传统箱型浮式防波堤。所提出的新型防波堤结构形式可为实际工程中消浪应用提供一定的参考。
The traditional rectangular floating breakwater has simple structure and convenient installation,but its attenuation effect on long wave is limited.In order to effectively improve the wave attenuation performance of this kind of floating breakwater,a new type of floating breakwater structure with triangular wing plate was proposed.Firstly,based on the viscous incompressible fluid dynamics theory,the fluid-structure interaction numerical model of the floating breakwater was established,and its applicability and feasibility were verified by comparing its results with the published results.Then,the wave attenuation performance of the new breakwater was numerically analyzed under different wave conditions.The calculation results show that the wave attenuation performance reaches the optimal value when the wing angle is 22.5°;On this basis,the influence of different box draught on the wave attenuation effect was further analyzed.The analysis results of the vorticity field and velocity field show that the wave attenuation performance of the floating breakwater with triangular wing plates is significantly better than that of the traditional rectangular floating breakwater because it not only reduces the transmitted waves through the reflection of the wing plates,but also effectively dissipates the incident wave energy through the formation of eddy.The new breakwater structure proposed in this paper provides a reference for the application of wave attenuation measure in practical engineering.
作者
陈昊希
赵峰
朱宏博
包艳
韩兆龙
夏天
CHEN Haoxi;ZHAO Feng;ZHU Hongbo;BAO Yan;HAN Zhaolong;XIA Tian(School of Ocean and Civil Engineering,ShanghaiJiaoTongUniversity,Shanghai 200240,China;91053 Unit,People’s Liberation Army of China,Beijing 100070,China)
出处
《振动与冲击》
北大核心
2025年第10期170-179,197,共11页
Journal of Vibration and Shock
基金
国家自然科学基金项目(12372270)
国家自然科学基金项目(52108375)
四川省自然科学基金项目(2024NSFSC0065)。
关键词
浮式防波堤
消浪性能
计算流体力学
流固耦合
floating breakwater
wave attenuation performance
computational fluid dynamics
fluid-structure
