二维水质模型在武汉东湖引水工程中的应用  

Application of two-dimensional water quality model in the project of the water diversion in East Lake,Wuhan

作　　者：余成[1,2] 任宪友[1] 班璇[1] 杜耘[1] 

机构地区：[1]中国科学院测量与地球物理研究所湖北省环境与灾害监测评估重点实验室,武汉430077 [2]中国科学院研究生院,北京100049

出　　处：《湖泊科学》2012年第1期43-50,共8页Journal of Lake Sciences

基　　金：中国科学院知识创新工程重要方向性项目(KZCX2-YW-141);湖北省自然科学基金项目(2009CDB219)联合资助

摘　　要：以"大东湖生态水网"工程的实施为契机,应用MIKE21软件对武汉东湖引水工程进行数值模拟.利用东湖2008年6月和7月实测的水深、TN和TP数据率定了模型参数(床底摩擦力和涡粘系数),并利用2010年7月实测数据建立水动力学模型和对流扩散模型,模拟了四种引水工况下模型运行35 d之后东湖水体中TN、TP浓度分布情况,并比较四种工况的模拟结果.结果表明:在设置两个引水口以及考虑风速影响的情况下,东湖水体中TN、TP浓度分布最均匀.对"大东湖生态水网"工程的实施具有一定的指导意义.Based on the ＂Project of East Lake Hydrology Network＂, a numerical model of diversion project of East Lake was estab- lished using MIKE21. A calibration of the model parameters （ the bed resistance and the eddy viscosity） were performed by the wa- ter depth, the concentrations of total nitrogen and total phosphorus which were measured in East Lake in June and July in 2008. The hydrology model and the transport model are established by the measured value in East Lake in July, 2010. Four diversion conditions have been simulated. The distribution of total nitrogen and total phosphorus after 35 d＇ running have been established. Comparison of the simulated results of the four diversion conditions shows under the conditions of two inflows and considering both wind, the concentration, the distributions of total nitrogen and total phosphorus are the most uniform. This fining is important for the ＂Project of East Lake Hydrology Network＂.

关 键 词：东湖 大东湖水网 MIKE21 

分 类 号：X832[环境科学与工程—环境工程]