含翼板浮式防波堤消浪性能分析  

Wave Attenuation Performance of Floating Breakwater with Wing Baffles

作　　者：赵峰 陈城 朱宏博 包艳[1] 韩兆龙[1] 陈新权[1] Zhao Feng;Chen Cheng;Zhu Hongbo;Bao Yan;Han Zhaolong;Chen Xinquan(School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《动力学与控制学报》2023年第6期47-54,共8页Journal of Dynamics and Control

基　　金：国家自然科学基金资助项目(52101322,52122110)。

摘　　要：本文将浮式防波堤结构简化为两自由度的刚体运动,基于黏性不可压缩流体理论,用体积分数方法捕捉自由液面,采用重叠网格技术和有限体积法,使用计算流体力学软件Star-CCM+建立了二维数值水槽,对新提出的一种含翼板的箱型浮式防波堤和不含翼板的传统箱型浮式防波堤进行了数值模拟,对比分析了两种浮式防波堤的消浪性能、运动响应和流场特性,结果表明:翼型挡板能有效降低浮式防波堤的运动响应;含翼板和不含翼板浮式防波堤运动响应的不对称性是由水下两对不同强度和不同演化形式的旋涡造成的;附加翼型挡板在水下能形成强度更大的旋涡,从而吸收更多的波浪能,能够明显提升箱型浮式防波堤的消浪效果;附加翼型挡板在高性能的浮式防波堤设计中具有巨大潜力.In this paper,the floating breakwater structure is simplified to a rigid body motion with two degrees of freedom,a two-dimensional numerical flume is established using the computational fluid dynamics software Star-CCM+based on the theory of viscous incompressible fluid,the free surface is captured by the volume fraction method,the overset mesh technique and the finite volume method are used.A new proposed box-type floating breakwater with wing baffles and a traditional box-type floating breakwater without wing baffles are simulated numerically,and the wave attenuation performance,motion response and flow field characteristics of the two types of floating breakwaters are compared and analyzed.The results show that:wing baffles can effectively reduce the motion response of floating breakwater;the asymmetry of the motion response of the floating breakwater with and without wing baffles is caused by two pairs of vortices with different strengths and evolutionary forms underwater;the additional wing baffles can induce stronger vortexes underwater,thus absorbing more wave energy,which can significantly improve the wave attenuation performance of the box-type floating breakwater;the additional wing baffles have a great potential in the design of high performance floating breakwaters.

关 键 词：浮式防波堤 消浪性能 计算流体力学 体积分数方法 

分 类 号：P75[天文地球—海洋科学]