淮河-沙颍河水量水质综合模拟

Numerical simulation of water quantity and quality for the Shaying River in Huai River

为了模拟淮河中游洪水及污染物氨氮的变化过程,根据河道水动力特性以及污染物输送特征,利用2000-2003年6场洪水的流量、水质资料和451个断面的地形资料,建立了河网一维水动力模型和水质模型.经过模拟验证,模型计算的流量平均确定性系数为0.85,水质浓度变化与实测状况趋势保持一致,表明建立的模型具有较好的模拟效果,可为淮河水闸的防洪防污调度提供技术支持.

In order to simulate the dynamic change of flood discharge and the concentration of the main contaminant（ammonia-nitrogen） in the middle reach of Huai River Basin,one-dimensional hydrodynamic and water quality model for river networks are established by using topographical data,observation discharge and water quality data of 451 sections in 2000-2003,on the basis of hydrodynamic characteristic of rivers as well as the pollution transportation characteristic.After the model validation,the average coefficient of determination is 0.85 and the simulated concentration of ammonia-nitrogen has the same trend with the measured ones.The model is applied to the sluice＇s flood and pollution control system.