【摘要】 裂隙水反应运移模拟是地球科学和环境工程领域的研究热点与难点，传统的等效多孔介质模型或离散裂隙网络模型在刻画复杂裂隙网络中的水流和溶质运移过程时存在一定的局限性。文章开发裂隙水反应运移数值模拟软件FracRTM，基于离散裂隙网络（Discrete Fracture Network, DFN），采用升尺度离散裂隙—基质模型（Upscaled Discrete Fracture Matrix Model,UDFM）构建连续体网格并计算等效渗透率和孔隙率，采用开源反应运移数值模拟程序模拟裂隙—基质系统中地下水流动、溶质运移和化学反应的物理—化学过程。文章介绍了FracRTM的总体设计与功能模块，同时基于FracRTM进行了酸性矿坑水在碳酸盐岩裂隙网络中迁移过程的数值模拟案例分析，以验证软件的有效性。更多还原

【Abstract】 Reactive transport simulation in fractured media is a prominent and challenging research area in the fields of geosciences and environmental engineering. Traditional equivalent porous media models and discrete fracture networks have certain limitations in accurately characterizing groundwater flow and solute transport processes within complex fracture networks.This paper presents the development of FracRTM, a numerical simulation software for groundwater flow and reactive transport in the fractured media. FracRTM, based on Discrete Fracture Network(DFN) modeling, employs the Upscaled Discrete Fracture Matrix Model(UDFM) to construct continuum meshes and calculate equivalent permeability and porosity. The software integrates open-source reactive transport simulation programs to model the physical and chemical processes of groundwater flow, solute transport, and chemical reactions within fractured-matrix systems. This paper describes the overall design and functional modules of FracRTM, followed by a numerical simulation case study of acid mine drainage migration, which is used to validate the software’s effectiveness.更多还原