| 非饱和-饱和区域中重金属污染物运移数值模拟 |
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| 引用本文： | 姜利国,梁冰.非饱和-饱和区域中重金属污染物运移数值模拟[J].辽宁工程技术大学学报(自然科学版),2007(Z2). |
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| 作者姓名： | 姜利国 梁冰 |
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| 作者单位： | 辽宁工程技术大学力学与工程学院，辽宁工程技术大学力学与工程学院 辽宁 阜新 123000，辽宁 阜新 123000 |
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| 基金项目： | 国家自然科学基金资助项目(50574048) |
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| 摘 要： | 为了定量整体描述非饱和-饱和区域内水流及溶质迁移过程,在基于非饱和流动理论及溶质运移理论基础上,建立了非饱和-饱和区域内水流方程与重金属污染物运移方程耦合的数学模型。采用V-G模型来描述土壤水分特征函数.用Lagrange-Quadratic方法进行求解并给出模拟结果:分析结果表明,在非饱和-饱和区域内的压力水头、饱和度以及污染物阻滞因子等参数均随含水率的变化而改变,这是区别于饱和流的主要特点。
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| 关 键 词： | 饱和-非饱和流 重金属污染物 V-G模型 |
Numerical analog simulation of heavy metal pollution transport in variably saturated flow |
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| JIANG Li-guo LIANG Bing.Numerical analog simulation of heavy metal pollution transport in variably saturated flow[J].Journal of Liaoning Technical University (Natural Science Edition),2007(Z2). |
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| Authors: | JIANG Li-guo LIANG Bing |
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| Abstract: | According to theory of the unsaturated flow and solute transport,the mathematical model of the groundwater flow equation coupled with the heavy mental pollution transport equation is established.The Van Genuchten model is used to describe the soil water retention function,and solve this coupling model with the Lagrange-Quadratic method.The conclusion is drawn from the analysis of the simulation results in variably saturated domain that the pressure head,effective saturation of the soil and the retardation factor vary with the infiltration of the water.This is main feature different from the saturated flow. |
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| Keywords: | variably saturated flow heavy mental pollution V-G model |
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