EFDC模型在城市景观水体生态补水工程设计中的应用——以昆明市翠湖为例  

The Application of EFDC Model in the Design of Ecological Water Supplement Project for Urban Landscape Water-case Study of the Greenlake in Kunming

作　　者：吴雪 何佳 WU Xue;HE Jia(Kunming Institute of Environmental Science,Kunming 650032,China)

机构地区：[1]昆明市环境科学研究院,云南昆明650032

出　　处：《环境保护科学》2019年第1期73-78,共6页Environmental Protection Science

基　　金：滇池流域水质目标管理和总量控制优化方案研究项目资助

摘　　要：景观水体是城市人居环境的重要组成部分,但由于水体流动性差,水质难以保证,常需要环境水的补充。文章以昆明市翠湖为例,基于环境流动动力学模型(Environmental Fluid Dynamic Code,EFDC),模拟分析补水工程不同设计条件下的水动力情况变化,以辅助补水工程设计。结果表明翠湖补水工程适宜的补水量为30 000 m^3/d,进一步增大补水量对翠湖水动力改善效果不明显;结合水质零维模型,进一步明确了该补水工程适宜补水水源为牛栏江水。Landscape water is an important part of urban living environment.However,water quality deterioration of landscape water is a common problem because of their insufficient water mobility,and it is often necessary to conduct ecological water supplement projects to guarantee good water quality of landscape water.This paper introduces a case study of the Greenlake in Kunming,in which Environmental Fluid Dynamic Code(EFDC)model is applied to assist water supplement project design.The results show that increased water supply leads to better water exchange,but the optimal amount of exogenous water supply for the Greenlake is 30000 m^3/d.The effect of water supplement on the water quality of the Greenlake is not obvious when the amount of water supplied increases.Combined with zerodimensional water quality model,it is found out that Niulan River water is more favorable water source for the Greenlake.

关 键 词：景观水体 EFDC模型 水动力 水龄 

分 类 号：X829[环境科学与工程—环境工程]