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 引用本文: 薛强, 梁冰, 刘晓丽, 李宏艳. 污染物在非饱和带内运移的流固耦合数学模型及其渐近解[J]. 应用数学和力学, 2003, 24(12): 1309-1318.
XUE Qiang, LIANG Bing, LIU Xiao-li, LI Hong-yan. Fluid-Solid Coupling Mathematical Model of Contaminant Transport in Unsaturated Zone and Its Asymptotical Solution[J]. Applied Mathematics and Mechanics, 2003, 24(12): 1309-1318.
 Citation: XUE Qiang, LIANG Bing, LIU Xiao-li, LI Hong-yan. Fluid-Solid Coupling Mathematical Model of Contaminant Transport in Unsaturated Zone and Its Asymptotical Solution[J]. Applied Mathematics and Mechanics, 2003, 24(12): 1309-1318.

• 中图分类号: TU411

## Fluid-Solid Coupling Mathematical Model of Contaminant Transport in Unsaturated Zone and Its Asymptotical Solution

• 摘要: 污染物在非饱和带中运移过程是多组分多相渗流问题.在考虑气相的存在对水相影响的前提下,基于流固耦合力学理论,建立了污染物在非饱和带内运移的流固耦合数学模型.对该强非线性数学模型采用摄动法及积分变换法进行拟解析求解,得出了解析表达式.对非饱和带内的孔隙压力分布、孔隙水流速以及污染物的浓度在耦合与非耦合气相条件下的分布规律进行解析计算.对该渐近解与Faust模型的计算结果进行了对比分析,结果表明:该模型解与Faust解基本吻合,且气相作用以及介质的变形对溶质的输运过程产生较大的影响,从而验证了解析表达式的正确性和实用性.这为定量化预报预测污染物在非饱和带中迁移转化和实验室确定压力-饱和度-渗透率三者之间的关系提供了可靠的理论依据.
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##### 出版历程
• 收稿日期:  2001-03-30
• 修回日期:  2003-05-16
• 刊出日期:  2003-12-15

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