摘要
海堤是沿海地区防潮御浪的重要基础设施,其中复式断面是最为常见的断面型式。本文采用数值模拟方法,基于黏性不可压缩流体的RANS方程和VOF法,利用边界造波技术和多孔介质结合辐射边界消波技术,建立立面二维和三维数值波浪水槽,在分析验证造波质量和规则波越浪基础上,针对下坡陡、上坡缓、中间为平台的典型复式海堤,开展不规则波越浪数值模拟,并利用流场分析手段,研究波浪与海堤相互作用过程。模拟结果与物理模型试验成果吻合较好,说明数学模型具有较高准确性和实用性,可进一步推广应用于工程实际。
The sea-dike is an important infrastructure to protect coastal areas from tides and waves,with composite sections being the most common section type.Based on the RANS equation and VOF method for viscous incompressible fluid,two-dimensional and three-dimensional numerical wave flumes are established by using boundary wave-making technology and porous media combined with radiation boundary wave-absorbing technology.The wave quality of regular and irregular waves is analyzed.The regular wave overtopping on a typical two-section sea-dike is simulated and validated.For the typical three-section sea-dike with steep downhill,gentle uphill and platform in the middle,the numerical simulation of irregular wave overtopping is carried out.The interaction between waves and sea-dikes is studied by means of flow field analysis.The simulation results agree well with the physical model results,indicating that the established model is highly accurate and practicable,and can be further applied to engineering practice.
作者
董志
关大玮
苗青
黄元中
张从联
DONG Zhi;GUAN Da-wei;MIAO Qing;HUANG Yuan-zhong;ZHANG Cong-lian(Guangdong Research Institute of Water Resources and Hydropower, Guangdong Key Laboratory of Hydrodynamics Application Research, Guangzhou 510635, China;State-province Joint Engineering Laboratory of Estuarine Hydraulic Technology, Guangzhou 510635, China)
出处
《中国农村水利水电》
北大核心
2020年第3期112-118,共7页
China Rural Water and Hydropower
基金
广东省水利科技创新项目(2011-09)
广东省自然科学基金项目(2015A030313694)。
关键词
越浪
规则波
不规则波
复式海堤
数值模拟
wave overtopping
regular wave
irregular wave
composite section sea-dike
numerical simulation
