Study On The Numberical Simulation Of Grounudwater Pollution Based On IDL

The protection and utilization of groundwater is a strategic problem related to the durative development of China's economy and society. Because of the complexity of the condition of groundwater dynamic force, aiming at the specific hydrologic geology condition, dynamic force condition, the pollutant migration instance of groundwater, establishing reasonable groundwater solute migration model, using computer languages, numerical simulating and visualizing the distributing State, is a cheap and effective method for predicting and preventing groundwater pollution.This paper introduces the most recent interactive data language-IDL and analyzes it's advantages in the groundwater pollution simulation on the basis of summarizing the basic theory, method and software of the research of groundwater pollution numerical simulation systemically. The tracer migration that the tracer concentration continuously injecting into semi-infinite sand column(initialization velocity is zero) and the pollutant continuously enter into aquifer through a discharging well that completely enter into the dive aquifer are two representative groundwater pollution problems ,Then this paper respectively sets above two decided solution problems and the union simulation problem of groundwater and solute as examples, from the question description, the mathematical model selection and determination, the parameters selecting to carry on the value computation, the read-write of attribute data , visualizes by the IDL programs, carries on the numerical simulation and the visualization post-processing to the above groundwater pollution problems, and according to the numerical solution and the solute migration curves, briefly analyzes and predicts the temporal and spatial distribution features and distribution range of contaminant concentration. Finally aiming at the ideal model that migration of waste rock hill leachate in fractured porous media with a sectioned point source in fracture , using its analytic solution, simulate the transport of waste...