液舱晃荡对压载水型浮式防波堤消浪性能的影响  

Effects of liquid sloshing inside ballast tanks on the wave attenuation performance of hydrodynamic floating breakwaters

作　　者：唐澳明 季新然 阳志文 于宗冰 王道儒 Tang Aoming;Ji Xinran;Yang Zhiwen;Yu Zongbing;Wang Daoru(School of Civil Engineering and Architecture,Hainan University,Haikou 570228,China;School of Marine Science and Engineering,Hainan University,Haikou 570228,China;Hainan Academy of Marine and Fishery Sciences,Haikou 571126,China;Tianjin Research Institute for Water Transport Engineering,M.O.T,Tianjin 300456,China;School of Naval Archiecture,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]海南大学土木建筑工程学院,海南海口570228 [2]海南大学海洋科学与工程学院,海南海口570228 [3]海南省海洋与渔业科学院,海南海口571126 [4]交通运输部天津水运工程科学研究院,天津300456 [5]大连理工大学船舶工程学院,辽宁大连116024

出　　处：《海南大学学报（自然科学版）》2024年第3期312-320,共9页Journal of Hainan University（Natural Science）

基　　金：国家自然科学基金项目(52261043);国家重点研发计划项目(2019YFB1504304);工业和信息化部高技术船舶项目([2019]357号);海南省科技计划三亚崖州湾科技城联合项目(420LH022)。

摘　　要：基于计算流体力学(CFD)方法,建立了波浪与压载水型浮式防波堤相互作用的数值模型,模拟分析了波浪场分布特征,探究了液舱晃荡对压载水型浮式防波堤消浪性能的影响.结果表明:压载水型浮式防波堤通过减小防波堤运动响应和增大对入射波能量的消耗来提升消浪性能;对比干砂型浮式防波堤,压载水型浮式防波堤消浪性能最高可提升21.9%;常见入射波浪频率接近液舱晃荡固有频率,引起舱内液体会发生共振现象,导致防波堤消浪性能减弱;在防波堤液舱内部加入竖向挡板,改变其液舱晃荡的固有频率,加入挡板后防波堤消浪性能最高可提升51.6%.结果有望为海岸防护工程领域提供新的思路和解决方案,为实际工程提供一定的参考.In the report,based on the CFD(computational fluid dynamics)method,a numerical model of the in⁃teraction between waves and ballast-type floating breakwaters was established,the wave field distribution charac⁃teristics were simulated and analyzed,and the effects of liquid sloshing in the ballast tanks on the wave attenua⁃tion performance of the floating breakwaters were explored.The results showed that the ballast-type floating breakwaters improve the wave attenuation performance through reducing the motion response of the breakwaters and increasing the consumption of incident wave.Compared to the dry sand-type floating breakwaters,the wave attenuation performance of ballast-type floating breakwaters can be improved by up to 21.9%.When the inci⁃dent wave frequency is close to the natural frequency of the liquid sloshing in the tank,the resonance occurs within the tank,leading to a reduction in wave attenuation performance.By adding vertical baffles inside the ballast tanks to change the natural frequency of the liquid sloshing,the wave attenuation performance of the breakwaters can be improved by up to 51.6%.These results are expected to provide new ideas and solutions for the field of coastal protection engineering and offer some references for the practical engineering.

关 键 词：浮式防波堤 液舱晃荡 透射系数 波能耗散系数 

分 类 号：O353.2[理学—流体力学]