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中文摘要：
以河道法为基础建立水动力学计算模块，模块集成了产流、汇流模型，包括了多种闸门运行控制方式的模拟．以美国国家环保局（EPA）的水质模型（WASP6）为基础建立了考虑水质主要指标CODCr，NH3-N，BOD5和DO及点污染源和面污染源的水质计算模块．该耦合模型水量和水质同时耦联计算，特别适宜于受潮汐影响的河网水质的模拟．模型利用上海市青浦、松江区河网实测资料进行了验证，CODCr的计算误差在-25％～18％之间，NH13-N的计算误差在-14％～20％之间．考虑到实测数据的误差，模型水质计算的精度完全满足工程计算精度的要求．该耦合模型可以用于受潮汐影响的闸控河网水质的模拟．
英文摘要：
The simulation of water quality for gate-controlled fiver net under influence of tides is an important issue for water environment management in estuarine regions. The fiver net water quality model consists of two parts, i.e. the modules for hydrodynamic calculation and water quality calculation. In this paper, a hydrodynamic calculation module with the runoff generation and confluence processes taken into account was developed based on the channel method, which could simulate complicated gate operation procedures. Meanwhile, a water quality calculation module was also developed based on the water quality medel WASP6 by EPA, in which the main water quality indexes, such as CODCr, NH3-N, BOD5, and DO, the point sources and the non-point sources were taken into account. With the water quality coupling model, the water quality and water quantities could be calculated simultaneously. The model was verifiedby the measured data of the fiver nets of Qingpu and Songjiang Districts of Shanghai City. The calculation errors of CODCr and NH3-N of the model were in the ranges of - 25%-18% and - 14%-20%, respectively. The calculation accuracy of the model meets the requirement of practical projects. Therefore, the coupling model can be used for simulation of water quality for fiver nets under influence of tides.
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