水资源与水工程学报2017，Vol.28Issue(5)：150-155,6.DOI:10.11705/j.issn.1672-643X.2017.05.25
三峡水库不同水位运行下大宁河水动力过程模拟
Modeling the hydrodynamics of Daning River under different working condition of Three Gorges Reservoir based on Delft3D
摘要
Abstract
The operation and construction of the Three Gorges Reservoir has an important influence on the hydrodynamic force of the tributaries of the reservoir.In this paper,Daning tributary of the Three Gorges Reservoir was used as an example,based on the Delft3D model,to establish a two-dimensional hydrody-namic model of Dachang of Daning River to Changjiang Estuary.The hydrodynamic characteristics of the Daning River under high water level and low water level operation of the Three Gorges Reservoir were simu -lated,and the distribution of water flow in the simulation section of Daning River was obtained.The simu-lation results show that the overall flow velocity of Daning River area is slow,which is less than 0.04 m/s when the Three Gorges Reservoir runs in high and low water level.The flow velocity of backwater regions of Daning River is less than 0.01 m /s at low water level and less than 0.001 m /s at high water level, which is obviously characterized by lacustrine facies, The water self-purification ability is greatly weak-ened,which is prone to cause water bloom and affect the water quality of Daning river.Our results can pro-vide support information for the management of the tributaries of the Three Gorges Reservoir area.关键词
不同水位运行/Delft3D模型/水动力过程模拟/三峡库区/大宁河Key words
different working condition/Delft 3D model/hydrodynamics simulation/Three Gorges Reser-voir/Daning River分类
建筑与水利引用本文复制引用
刘广龙,余明星,石巍方,朱端卫,王雨春,周怀东..三峡水库不同水位运行下大宁河水动力过程模拟[J].水资源与水工程学报,2017,28(5):150-155,6.基金项目
国家水体污染控制与治理科技重大专项项目(2012ZX07104-001) （2012ZX07104-001）
