海岸破碎带植物消浪数值模拟研究  

Numerical simulation of vegetation-induced wave dissipation in the surf zone

作　　者：刘达[1,2] 黄本胜[1,2] 邱静[1,2] 谭超[1,2] 

机构地区：[1]广东省水利水电科学研究院广东省水动力学应用研究重点实验室,广东广州510610 [2]河口水利技术国家地方联合工程实验室,广东广州510610

出　　处：《海洋工程》2016年第2期16-23,55,共9页The Ocean Engineering

基　　金：国家自然科学基金面上资助项目(51279120);广东水利科技创新重大专题资助项目(2009-29)

摘　　要：沿海防浪林能形成柔性的植物消浪体系,可以有效降低风暴潮灾害。由于防浪林消浪效果受波浪、近岸水深及植物等多重因素的影响,消浪机理较为复杂,以往的系统研究成果较少。本文以立面二维自由面紊流模型为工具,建立了基于植物冠层特征的多孔介质模型,精细地模拟了破碎波对植物带的冲击,并与物理模型试验结果进行了对比验证,计算分析了植物带宽度、植物密度、滩地水深等因素对消浪效果的影响。Wave-proof plants along sea walls can effectively counteract the damage caused by ocean disasters like storm surges and typhoon waves. However, most current researches merely focus on the wave dissipation rate, and concern little about vegetation natures such as plant width, density and height, or hydrodynamic characteristics like wave conditions and water depth. Therefore, this work was conducted to make up for this scarcity. Based on two-dimensional swirl models, a porous media model was established to simulate wave propagation into the vegetated area under circumstances of different vegetation parameters and water depths. Meanwhile, the principle of wave breaking in the coo-hydraulic system was also investigated.

关 键 词：植物消浪 消浪系数 植物带宽度 植物密度 波浪条件 数学模型 

分 类 号：TV139.2[水利工程—水力学及河流动力学]