水资源与水工程学报2017，Vol.28Issue(2)：33-39,7.DOI:10.11705/j.issn.1672-643X.2017.02.06
基于Delft3D的三峡水库不同工况下香溪河水动力水质模拟
Modeling the hydrodynamics and water quality of Xiangxi River under different working conditions of Three Gorges Reservoir Based on Delft3D
摘要
Abstract
The impacts of high water level running of three gorges dam on the reservoir water environment has always been a concerned problem.Taking Xiangxi River upstream of three gorges reservoir area as an example,the hydrodynamic and water quality of Xiangxi River would be simulated in this paper based on the mathematical model of Delft3 D.First,the flow module was used to construct the hydrodynamic model in the study area,and the spatialtemporal hydrodynamic characteristics in flood season and storage period of 2013 were simulated.Second,the water quality model was built by using Waq module and NH4+ distribution was simulated after discharge of a large number of its emission.The modeling results showed that Xiangxi River in flood season was in a typical state of "River phase",with a high flow rate.In the water storage period of the Three Gorges Reservoir,Xiangxi River is in a state like "lake phase",the flow rate became very low and vortex was shaped.During the water storage period of the reservoir,the water level increased which caused slow river flow rate,and the hydrodynamic characteristics of Xiangxi River played a decisive role in the pollutant distribution.The water pollution characteristics of pollutants showed obvious flow back characteristics,which threatened Xiangxi river water quality.The study results can help provide support information for the management of the tributaries of the Three Gorges Reservoir area.关键词
水动力模拟/水质模拟/Delft3D/三峡水库/香溪河Key words
hydrodynamics simulation/water quality simulation/Delft3D/Three Gorges Reservoir/Xiangxi River分类
建筑与水利引用本文复制引用
黄庆超,石巍方,刘广龙,王雨春,周怀东,朱端卫..基于Delft3D的三峡水库不同工况下香溪河水动力水质模拟[J].水资源与水工程学报,2017,28(2):33-39,7.基金项目
国家水体污染控制与治理科技重大专项(2012ZX07103-001) （2012ZX07103-001）
