浅层地下水水质系统碘浓度场数值仿真

Numerical Emulation of Iodine Concentration Field of Groundwater System

基于地下水系统概念模型分析,采用准三维数值仿真技术,建立了由地下水水流模型、溶质运移模型和地下水运动方程组成的地下水水质模型。先解地下水水流模型,得到地下水渗流场水位函数H(x, y, t);再解地下水运动方程得到各单元的地下水实际流速;最后解溶质运移模型,求出计算区内任一点的溶质浓度。数值计算结果表明,水质模型仿真性能良好。

Based on conception model of groundwater system in the Zhengzhou city, the groundwater quality models are established. The models include the model of groundwater flow, the model of solute movement and the model of ground water motion. Firstly, the model of groundwater flow is solved for H (x,y,t); then the model of groundwater movement is solved for actual velocity of groundwater flow in every unit; and the solute movement is solved for the iodine concentration of the every point in overall research area. The results of numerical emulation are good.