A multipoint flux mixed finite element method with mass-conservative characteristic finite element method for incompressible miscible displacement problem

被引：0
|
作者：
Xindong Li
Mingyang Du
Wenwen Xu
机构：
[1] Qilu University of Technology (Shandong Academy of Sciences),School of Mathematics and Statistics
来源：
Numerical Algorithms | 2023年 / 93卷
关键词：
Multipoint flux mixed finite element; Characteristic finite element; Mass conservation; Miscible displacement; Error estimates;
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学科分类号：
摘要：
In this paper, we consider a decoupled and mass-conservative numerical scheme for the incompressible miscible displacement problem in porous media by employing multipoint flux mixed finite element method for velocity-pressure equation and mass-conservation characteristic finite element method for concentration equation. This feature is designed to avoid handling saddle-point system and keep mass globally. Convergence and L2 error estimates of full discrete scheme are obtained. Numerical experiments are also presented to verify the correctness of the theoretical analysis.
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页码：1795 / 1810
页数：15
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