OpenFOAM在植被水流模拟中的应用  

On the Effects of Circular Vegetation Patch on Hydrodynamic Characteristics of Coastal Areas with OpenFOAM Model

作　　者：陈正兵 

机构地区：[1]长江勘测规划设计研究有限责任公司,湖北武汉430010

出　　处：《水电与新能源》2016年第11期68-72,共5页Hydropower and New Energy

基　　金：国家科技支撑计划课题(2013BAB12B04);国家自然科学基金(51511130073);清华信息科学与技术国家实验室(筹)的支持

摘　　要：鉴于水生植被广泛存在于长江口河道滩地,其对滩地水动力特性和泥沙沉积等有重要影响,采用Open FOAM模型模拟了斑块植被对水动力特性的影响,对比分析了不同密度斑块植被对水流结构影响。结果表明,不同密度植被尾流结构差别明显,植被较密时,下游侧植株周围流速明显减小,尾流结构不明显。Aquatic vegetation commonly exists in river estuary and coastal areas,which plays an important role in the coastal hydrodynamics and landform evolution. The effects of circular vegetation patch on hydrodynamic characteristics of the coastal areas are studied with the Open FOAM model. Specifically,effect of the vegetation density on the flow characteristics is investigated. The results show that the wake flow structures are different with different vegetation densities.For denser vegetation patch,the flow velocity around the downstream vegetation is much smaller,and no obvious wake flow structure is observed.

关 键 词：斑块植被 水流特性 数值模拟 OPENFOAM 

分 类 号：X171.4[环境科学与工程—环境科学]