组合型浮式防波堤水动力响应与消浪性能研究  

Research on Hydrodynamic Response and Wave Dissipation Performance of Combined Floating Breakwater

作　　者：王贯宇 谢书刚 伍磊 张天向 涂佳黄[1,3] WANG Guanyu;XIE Shugang;WU Lei;ZHANG Tianxiang;TU Jiahuang(College of Civil Engineering,Xiangtan University,Xiangtan 411105,Hunan,China;General Contracting Company of China Construction Fifth Engineering Division Co.,Ltd.,Changsha 410000,Hunan,China;School of Civil Engineering and Transportation,Foshan University,Foshan 528225,Guangdong,China)

机构地区：[1]湘潭大学土木工程学院,湖南湘潭411105 [2]中国建筑五局总承包公司,湖南长沙410000 [3]佛山大学土木与交通学院,广东佛山528225

出　　处：《力学季刊》2024年第3期781-794,共14页Chinese Quarterly of Mechanics

基　　金：湖南省自然科学基金(2021JJ50027,2022JJ50038);湖南省教育厅科学研究项目(21A0103);广东省基础与应用基础研究基金(2022A1515240077)。

摘　　要：为提升方箱式浮式防波堤的稳定性和消浪效果,本文发展了一种组合型浮式防波堤,并基于计算流体动力学方法,采用黏性流体理论,建立了二维数值水槽,以组合型浮式防波堤为研究对象,并通过与方箱式浮式防波堤进行对比,重点探讨了系泊方式和波参数对组合型浮式防波堤运动响应与消浪性能的影响.此外,对浮式防波堤周围水体的涡量分布情况进行了分析,揭示了其波浪能量耗散机制.研究结果表明,组合型浮式防波堤对波浪的耗散能力远高于方箱式浮式防波堤,其主要通过能量耗散衰减波浪.相比于方箱式浮式防波堤,组合型浮式防波堤的整体运动响应较小、消浪能力较强,且系泊方式对组合型浮式防波堤运动响应与消浪性能影响较小.然而,当入射波高增加时,系泊方式对其消浪性能有较大影响.研究结果可为浮式防波堤的优化设计和实际工程应用提供参考.In order to improve the stability and wave dissipation effect of the square box floating breakwater,in this paper we develop a combined floating breakwater and construct a two-dimensional numerical flume based on the computational fluid dynamics method with consideration of the fluid viscosity condition.Taking the combined floating breakwater as the object of study,we focus on the effects of the mooring mode and the wave parameter on the kinematic response and wave dissipation performance of the combined floating breakwater by comparing the results with those of the square box floating breakwater.In addition,the vortex distribution of the water body around the floating breakwater is analyzed to reveal the wave energy dissipation mechanism.The results show that the wave dissipation ability of the combined floating breakwater is much higher than that of the square-box floating breakwater,and it mainly attenuates waves through energy dissipation.Compared with the square box type floating breakwater,the overall motion response of the combined floating breakwater is smaller,the wave dissipation ability is stronger.The mooring method has less influence on the motion response and wave dissipation performance of the combined floating breakwater.However,when the incident wave height increases,the mooring method has a greater effect on the wave dissipation performance.The results of this study can provide a reference for the optimal design and practical engineering application of floating breakwaters.

关 键 词：组合型浮式防波堤 系泊方式 水动力特性 消浪性能 运动响应 

分 类 号：U656.24[交通运输工程—港口、海岸及近海工程]