刘玲,魏亚强,陈坚,李璐,牛浩博,殷乐宜

• 1:中国煤炭地质总局勘查研究总院
• 2:上海大学环境与化学工程学院
• 3:生态环境部环境规划院

摘要(Abstract)：

为了探讨结构和非结构动网格技术在地下水非饱和-饱和数值模拟领域未来的发展趋势，总结了非饱和-饱和耦合数值模拟研究现状，介绍了动网格技术原理及运动边界结构和非结构网格的变形方法，综述了动网格技术在非饱和-饱和分界面的应用现状及存在的不足，探讨了相关研究的未来发展趋势。综合分析表明：结构动网格和非结构动网格均存在其固有优缺点，结构、非结构混合网格以及多种动边界处理方法的结合使用在非饱和-饱和耦合数值模拟研究中具有重要的应用价值。在模拟潜水面的变动时，可将多种网格变形方法结合使用，当潜水面位置和形状变动较小时，采用弹簧法更新网格；当潜水面位置变化较大但形状变化较小时，采用重叠结构动网格技术或铺层法更新网格；当潜水面形状变动较大时，则采用网格重构法更新网格，从而更精确地模拟非饱和-饱和分界面的变化和移动。相关研究为场地非饱和带土壤与饱和带地下水协同防治工作提供了科学指导。

关键词(KeyWords)： 动网格;非饱和-饱和;土壤;地下水;数值模拟;弹簧法;重叠结构动网格技术;网格重构法

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学青年基金项目(42107015);; 国家重点研发计划(2018YFC1800204);; 中国煤炭地质总局勘查研究总院国有资本金研究课题(ZY-2022-04)

作者(Author): 刘玲,魏亚强,陈坚,李璐,牛浩博,殷乐宜

DOI: 10.19509/j.cnki.dzkq.tb20220103

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