| 守恒混合元法在模拟污染物运移过程中的应用 |
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| 引用本文： | 李焕荣.守恒混合元法在模拟污染物运移过程中的应用[J].系统科学与数学,2011,31(5). |
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| 作者姓名： | 李焕荣 |
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| 作者单位： | 重庆工商大学数学与统计学院,重庆,400067 |
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| 基金项目： | 国家自然科学基金(10871217); 重庆市科委(2010BB9252); 重庆市教委(KJ110712)资助课题 |
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| 摘 要： | 研究污染物在土壤中运移的时空规律,为土壤环境质量评价及污染预测和防治提供科学的根据与途径,具有重要的理论和实际意义.通过建立土壤中污染物运移问题的全离散守恒混合元格式,讨论了守恒混合元解的存在唯一性,并给出了误差估计.最后给出了数值算例,数值模拟结果表明,用该方法模拟污染物运移问题是合理有效的.
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| 关 键 词： | 污染物运移 混合元法 误差估计 数值模拟 |
A FULLY DISCRETE CONSERVATION MIXED FINITE ELEMENT FORMULATION FOR CONTAMINANTS TRANSPORTING PROBLEMS |
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| LI Huanrong.A FULLY DISCRETE CONSERVATION MIXED FINITE ELEMENT FORMULATION FOR CONTAMINANTS TRANSPORTING PROBLEMS[J].Journal of Systems Science and Mathematical Sciences,2011,31(5). |
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| Authors: | LI Huanrong |
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| Institution: | LI Huanrong (College of Mathematics,Chongqing Technology and Business University,Chongqing 400067) |
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| Abstract: | In this paper,a contaminants transporting equation in the nonstick soil water is studied.The existence and uniqueness of its fully discrete mixed finite element(FD-MFE)solutions are proved,and error estimates of FD-MFE solutions are analyzed.Finally,a numerical example shows that the method proposed here is effective. |
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| Keywords: | Contaminants transporting problems fully discrete mixed finite element error estimates numerical simulation |
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