| 地下水污染问题的特征-混合元方法 |
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| 引用本文： | 崔明. 地下水污染问题的特征-混合元方法[J]. 山东大学学报(理学版), 1998, 0(3) |
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| 作者姓名： | 崔明 |
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| 作者单位： | 山东大学数学系 |
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| 基金项目： | 国家自然科学基金,国家教委博士点基金 |
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| 摘 要： | 考虑裂缝—孔隙介质中地下水污染问题均匀化模型的周期性问题．对压力方程采用混合元方法，对浓度方程采用特征—有限元方法，对吸附浓度方程采用标准Ｇａｌｅｒｋｉｎ方法，证明了特征—混合元格式具有最优Ｌ２—模误差估计．
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| 关 键 词： | 特征线；混合元方法；标准Galerkin方法；误差估计 |
CHARACTERISTIC MIXED FINITE ELEMENT METHODS FOR THE PROBLEM OF THE POLLUTION OF GROUNDWATER IN FISSURED POROUS MEDIUM |
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| Cui Ming. CHARACTERISTIC MIXED FINITE ELEMENT METHODS FOR THE PROBLEM OF THE POLLUTION OF GROUNDWATER IN FISSURED POROUS MEDIUM[J]. Journal of Shandong University, 1998, 0(3) |
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| Authors: | Cui Ming |
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| Abstract: | The numerical methods for the averaging model of the problem of the pollution of groundwater in fissured porous medium are considered.A mixed finite element method is adopted to give a direct approximation of the velocity,the concentration is approximated by a combination of a Galerkin finite element method and the method of characteristics and the absorption concentration is approximated by a standard Galerkin method.Optimal order error estimates in L 2 norm is obtained. |
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| Keywords: | characteristic finite element method standard galerkin method error estimate |
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