Researching Water Environment Simulition And Controlling Of Xianyang Lake

With the development of cities, in the large typical buildings of cities, the landscape water body for instance artificial lake, riverway etc come forth constantly. Which improve grade and environment of cities. But the decline of water environment quality in landscape water body will affect negatively the townsman. Therefore, the governance and maintain of landscape water body has become a hot spot problem in cities. Take Xian Yang lake as background, this paper has done physical research on the basis of water system structure and analysing pollution present situation of Xian Yang Lake.Based on analyzing water pollution controlling technique of national in and out on landscape water body, consider city landscape water experiences and observes oneself characteristic, calculating water environment capacity of Xian Yang Lake under two status. On the basis of analyzing the character of landscape water body, the paper inducted comparability of landscape water body resilience and the transformative process of sample in mechanics,and suggested studying on the problems of resilience in landscape water body of city using the theoretics of nonlinear on the basis of variational rule of water environment in landscape water body, put forward a new solution to protect water environment in landscape water body. Put dynamical programming methods into water environment controlling of lake.Calculating best disposal efficiency combination of each sewage disposal factory based on sewage disposal factory and water quality condition restriction. That is, made sewage disposal cost of whole valley least, at the same time, met water quality goal from adjusting disposal efficiency of each disposal factory.The paper systematically presents an application of numerical models running upon the platform of MATLAB/Simulink, which visually simulates and emulates the COD and NH3-N in the Xian Yang Lake.The results show that the model has high accuracy and suitability relatively. It could be applied to predict, evaluate, simulate and emulate the engineering effect on the water body of urban region other than Xian Yang Lake also.