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非均质渗透介质纵向弥散度数值模拟估算法适宜性探析 被引量:13

Suitability of the numerical simulation approach for estimation of longitudinal dispersivity in heterogeneous media
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摘要 介绍了地下水溶质迁移转化模拟软件MT3DMS中的数值解法MOC、MMOC、HMOC和高阶TVD等的基本原理,分析比较了不同解法所获得的地下水污染时空分布模拟结果的质量误差以及纵向弥散度模拟计算结果异同,并进一步探讨了网格大小与污染源质量浓度对模拟结果的影响等.展现了通过数值模拟估算纵向弥散度的基本过程及其适宜性,重点探析了不同数值解法模拟估算弥散度的适用性. A few of numerical solution methods are briefly introduced,including MOC,MMOC,HOMC,and TVD,which are implemented in MT3DMS.Comparative analyses of mass errors and longitudinal dispersivity values obtained using the different methods were conducted.In addition,the impacts of the grid size and source concentration were examined.We present the basic procedure and the suitability analyses for longitudinal dispersivity estimation by numerical simulations.
作者 张嘉 王明玉
出处 《中国科学院研究生院学报》 CAS CSCD 北大核心 2011年第1期35-42,共8页 Journal of the Graduate School of the Chinese Academy of Sciences
基金 国家973项目(2010CB428801 2010CB428804) 国家科技重大专项(2009ZX05039-003 2009ZX07212-003) 中国科学院"百人计划"择优项目资助
关键词 地下水污染 模型 非均质 弥散度 数值模拟 groundwater contamination model heterogeneous media dispersivity numerical simulation
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