基于GMS的三维TOUGH2模型及模拟  

Three Dimension Model Construction for TOUGH2 Based on GMS and Comparison of Simulations

作　　者：谭家华[1] 雷宏武[2] 

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063 [2]中国科学院武汉岩土力学研究所,武汉430071

出　　处：《吉林大学学报（地球科学版）》2017年第4期1229-1235,共7页Journal of Jilin University：Earth Science Edition

基　　金：国家自然科学基金项目(41502246);中国博士后基金项目(2015M580682)~~

摘　　要：GMS和TOUGH2均是应用广泛的地下流动系统数值模拟软件,其中,GMS界面友好,功能强大;而TOUGH2虽具有强大的数值计算能力,但缺乏友好的可视化前后处理界面。本文借助GMS强大的前处理能力,基于概念模型建立了三维复杂模型,把GMS/MODFLOW三维数值模型(包括网格数据、岩性数据、初始和边界数据等)转化为TOUGH2数值模型进行数值计算。通过两个计算实例(含水层水平没有起伏和有起伏)对比分析了GMS/MODFLOW和TOUGH2计算结果的差异。结果显示,该方法可以快速地建立刻画复杂地质条件的TOUGH2模型,计算结果与GMS/MODFLOW差异很小,说明两个软件均有很高的可信度;同时,该方法发挥了两个软件各自的优势,为进行更为复杂的多相流动数值模拟提供了可行性。GMS and TOUGH2 are the famous softwares in the field of groundwater numerical simulation.Although TOUGH2 has the strong ability of numerical calculation,it lacks the friendly interface for pre-and post-process.With the powerful function of pre-and post-process in GMS and the conceptual modeling approach to construct the three dimension model,this paper converts the numerical model of GMS/MODFLOW（including gridding data,rocks property,initial and boundary data）into that of TOUGH2 for numerical calculation.Two examples（flat aquifers and variation elevation ofaquifers）are used to analyze the difference of results between GMS/MODFLOW and TOUGH2.The results indicate that this method is elegant to construct complex model fast for TOUGH2 and the difference is small which proves the high credibility for those two softwares.At the same time,this method can take individual advantage of the softwares and provide the feasibility to conduct more complex multiphase flow simulations.

关 键 词：数值模拟 GMS TOUGH2 三维模型 模拟对比 

分 类 号：P641.69[天文地球—地质矿产勘探]