中长周期波浪作用下的工字型浮式防波堤消波性能研究  

Study on Wave Dissipation of I-shaped Floating Breakwater under Medium-long Period Waves

作　　者：周阳 陈佳超 魏东泽 ZHOU Yang;CHEN Jiachao;WEI Dongze(School of Marine Engineering Equipment,Zhejiang Ocean University,Zhoushan 316022,China)

机构地区：[1]浙江海洋大学海洋工程装备学院,舟山316022

出　　处：《中国造船》2024年第4期168-179,共12页Shipbuilding of China

基　　金：国家自然科学基金项目(42006175,42106211);舟山市科技计划项目(2021C21025)。

摘　　要：基于T型浮式防波堤提出工字型浮式防波堤结构,采用STAR-CCM+软件实现波浪与浮式防波堤相互作用下的三维水动力数值模拟,进行中长周期波浪中的浮式防波堤的消波性能研究,分析两种浮式防波堤的消波效果以及在不同波浪入射角和周期作用下工字型浮式防波堤的透射系数和运动响应特性。数值结果表明:波浪周期越小,浮式防波堤的消波效果越好;波浪入射角增大,工字型浮式防波堤的纵荡、垂荡及纵摇运动响应幅值减小,横荡、横摇及艏摇运动响应幅值先增大后减小。中长周期波浪作用下的浮式防波堤消波性能研究可为海上浮式防波堤的设计和分析提供参考。A three-dimensional hydrodynamic method is established to investigate the interaction between waves and floating breakwater by applying STAR-CCM+software.The structure of I-shaped and T-shaped floating breakwater is used to study the wave dissipation under medium-long period waves,the wave dissipation of two floating breakwaters is compared and analyzed.The transmission coefficient and motion response of I-shaped floating breakwater under different incident wave angles and periods are studied and analyzed.The wave dissipation of the two floating breakwaters are varying with different wave periods.The wave dissipation increases with decreasing wave period.With the increase of the incident wave angles,the amplitude of surge,heave and pitch decreases,and the amplitude of sway,roll and yaw changes from increase to decrease.The wave dissipation performance of floating breakwater under medium-long period waves can provide a reference to the design of offshore floating breakwater.

关 键 词：工字型浮式防波堤 STAR-CCM+软件 中长周期波浪 透射系数 运动响应幅值 

分 类 号：TV131.2[水利工程—水力学及河流动力学]