| 河流海岸水动力学综合模型 |
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| 引用本文： | 卢吉,余锡平. 河流海岸水动力学综合模型[J]. 清华大学学报(自然科学版), 2009, 49(6): 820-824 |
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| 作者姓名： | 卢吉 余锡平 |
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| 作者单位： | 清华大学水利水电工程系,水沙科学与水利水电工程国家重点实验室,北京,100084;清华大学水利水电工程系,水沙科学与水利水电工程国家重点实验室,北京,100084 |
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| 基金项目： | 国家自然科学基金资助项目(10772099);;国家自然科学基金委员会创新研究群体基金资助项目(50221903) |
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| 摘 要： | 为研究在波浪、潮流及河川径流等多种动力因素共同作用下河口海岸地区的水动力环境,建立了一个河口海岸地区的综合水动力学模型。该综合模型应用了基于改进型Boussinesq方程的近岸模型、基于Saint-Venant方程的河道模型,并考虑了波浪破碎及底部摩擦的影响,将近岸水动力模型和河道水动力学模型进行耦合求解。将该模型用于研究长江口及口内感潮河道径流与潮流的相互作用,涨潮及落潮过程中水流运动。计算所得到的各测站水位、流速及流向与观测资料吻合良好。
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| 关 键 词： | 河流海岸动力学 改进型Boussinesq方程 Saint-Venant方程 统一模型 |
River and coastal hydrodynamics integrated model |
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| LU Ji,YU Xiping. River and coastal hydrodynamics integrated model[J]. Journal of Tsinghua University(Science and Technology), 2009, 49(6): 820-824 |
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| Authors: | LU Ji YU Xiping |
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| Affiliation: | State Key Laboratory of Hydroscience and Engineering;Department of Hydraulic Engineering;Tsinghua University;Beijing 100084;China |
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| Abstract: | An integrated numerical model was developed to study river,estuarine,and coastal hydrodynamics.A 2-D form of the extended Boussinesq equations,including the effects of energy dissipation associated with wave breaking and bottom friction,was employed to describe coastal wave motion and nearshor current.The Saint-Venant equations were used as the governing equations of the river flows,and the above two models are solved in coupled form.The integrated model was applied to study the interaction between the rive... |
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| Keywords: | rive and coastal hydrodynamics extended Boussinesq equations Saint-Venant equations integrated model |
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