波浪周期对透空式防波堤消浪性能影响的数值研究  

Numerical analysis on impact of wave period on wave dissipation performance of permeable breakwaters

作　　者：潘新颖[1,2] 陈宁馨 梁丙臣 王振鲁[1,2] PAN Xinying;CHEN Ningxin;LIANG Bingchen;WANG Zhenlu(College of Engineering,Ocean University of China,Qingdao 266100,China;Shandong Provincial Key Laboratory of Ocean Engineering,Qingdao 266100,China)

机构地区：[1]中国海洋大学工程学院,山东青岛266100 [2]山东省海洋工程重点实验室,山东青岛266100

出　　处：《水运工程》2024年第11期13-19,共7页Port & Waterway Engineering

基　　金：国家重点研发计划项目(2021YFB2601100)。

摘　　要：针对4种典型透空式防波堤结构,基于FLOW-3D建立三维数值模型,对不同波浪周期作用下的结构消浪性能及波能分布特征进行对比分析。数值计算结果表明:1)帷幕墙式防波堤适用于中短周期波浪的防护,桩基开孔挡板式防波堤仅适合短周期波浪的掩护需求,梳式防波堤与桩基竖直挡板式防波堤在短、中、长周期波浪环境下均具有良好的适用性。2)在特定周期下,梳式防波堤的波浪反射特性会引起共振,导致结构透射系数和反射系数分别呈现峰值和谷值。3)4种透空堤中,短周期波浪作用下,竖直挡板式防波堤的挡浪效果较好,梳式防波堤对中长周期波浪具有更好的掩护效果。Aiming at four typical permeable breakwater structures,a three-dimensional numerical model based on FLOW-3D is established to compare and analyze the wave dissipation performance and wave energy distribution characteristics of the structures under different wave periods.The numerical calculations indicate that:1)the curtain wall breakwater is suitable for short to medium waves,while the pile-supported permeable breakwater is only appropriate for short waves.The comb-type breakwater and double baffle pile-supported breakwater are applicable to waves ranging from short to long.2)The comb-type structure induces resonance under specific wave period,resulting in peaks and troughs in the transmittance and reflectance coefficients.3)Among the four perforated breakwaters,the double baffle pile-supported breakwater demonstrates superior wave attenuation under short waves,while the comb-type breakwater shows an edge in providing protection against medium to long waves.

关 键 词：透空式防波堤 桩基 消浪性能 水动力特性 数值模拟 

分 类 号：U656[交通运输工程—港口、海岸及近海工程]