二维土壤水中溶质运移问题的全离散混合元法研究  

MIXED FINITE ELEMENT FOR TWO-DIMENSIONAL SOLUTE TRANSITION WITH SOIL WATER

作　　者：李焕荣[1] 

机构地区：[1]重庆工商大学数学与统计学院,重庆400067

出　　处：《数值计算与计算机应用》2012年第3期207-214,共8页Journal on Numerical Methods and Computer Applications

基　　金：国家自然科学基金(11101453);重庆市科委基金(2010BB9252);重庆市教委基金(KJ110712);国家重点实验室(LASG)开放课题资助项目

摘　　要：本文建立了二维非粘性土壤水中溶质运移问题的混合元格式,讨论了混合元解的存在唯一性,并分析了误差估计.最后给出数值算例,数值模拟结果表明,用该方法模拟溶质运移问题是合理有效的.In this paper, a numerical model for two-dimensional solute transiting problem m nonstick soil water is established by mixed finite element method. The existence and uniqueness of its numerical solution are proved, and the error estimates are analysed. Finally, the numerical method has been verified by the example.

关 键 词：混合元法 溶质运移问题 误差估计 数值模拟 

分 类 号：S153[农业科学—土壤学]