地下水数值模拟研究与应用进展

工农业的快速发展,使得大量污染物随着降雨径流入渗进入地下水,对地下水资源产生了严重威胁。由于对地下水污染物的实时监测具有一定难度和较高的经济成本,地下水模拟软件应运而生。系统分析了GMS、FEFLOW、Visual MODFLOW、Visual groundwater、MT3DMS、TOUGH2等地下水模拟软件的结构、模型求解方法、功能及优缺点等,总结了软件在水流、地下水水位和污染物运移数值模拟的应用进展。最后,进行了展望,提出地下水数值模拟软件与3S技术集成、与人工神经网络等系统预测方法结合、气候变化模型与多相模型及地表水-地下水模型等耦合开发以及结构优化等发展趋势。以期为地下水动力学和污染物运移模拟及海绵城市建设提供参考。

The research and application progress of numerical simulation on groundwater

A large number of pollutants infiltrate into the groundwater with the rainfall runoff due to the rapid development of industry and agriculture. Due to certain difficulty and high economic cost of the real-time monitoring, groundwater simulation software is developed. This paper systematically analyzes the structure, solution methods, function, and advantages and disadvantages of such groundwater simulation software as GMS, FEFLOW, Visual MODFLOW, MT3DMS, and TOUGH2. The numerical simulation application of this software in the field of groundwater flow, water level and migration of pollutants is summarized. Finally, the development trends of the software are put forward, which are the integration with 3S technology, the combination with artificial neural network prediction method, climate change model, multiphase model, the development of the coupling model of surface water-groundwater and the optimization of model structure. This paper can provide supports for the simulation of groundwater hydrodynamic and pollutant transport and the construction of the sponge city in China.