Flux-mortar mixed finite element methods with multipoint flux approximation
Flux-mortar mixed finite element methods with multipoint flux approximation
复制标题
具有多点通量近似的通量-砂浆混合有限元法
DOI:
10.1016/j.cma.2022.115870
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发表时间:
2023
影响因子:
7.2
通讯作者:
Yotov, Ivan
中科院分区:
文献类型:
--
作者:
Boon, Wietse M.;Gläser, Dennis;Helmig, Rainer;Yotov, Ivan
The flux-mortar mixed finite element method was recently developed in Boon et al. (2022) for a general class of domain decomposition saddle point problems on non-matching grids. In this work we develop the method for Darcy flow using the multipoint flux approximation as the subdomain discretization. The subdomain problems involve solving positive definite cell-centered pressure systems. The normal flux on the subdomain interfaces is the mortar coupling variable, which plays the role of a Lagrange multiplier to impose weakly continuity of pressure. We present well-posedness and error analysis based on reformulating the method as a mixed finite element method with a quadrature rule. We develop a non-overlapping domain decomposition algorithm for the solution of the resulting algebraic system that reduces it to an interface problem for the flux-mortar, as well as an efficient interface preconditioner. A series of numerical experiments is presented illustrating the performance of the method on general grids, including applications to flow in complex porous media.
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DOI:
10.1016/j.camwa.2021.06.009
发表时间:
2021
期刊:
Comput. Math. Appl.
影响因子:
--
作者:
M. Arshad;Eun‐Jae Park;Dong
通讯作者:
Dong
影响因子:
2.5
作者:
Jayadharan, Manu;Khattatov, Eldar;Yotov, Ivan
通讯作者:
Yotov, Ivan
DOI:
10.1137/140953691
发表时间:
2016
期刊:
Multiscale Model. Simul.
影响因子:
--
作者:
Elliot Parramore;M. Edwards;M. Pal;Sadok Lamine
通讯作者:
Sadok Lamine
DOI:
10.1016/j.camwa.2017.09.031
发表时间:
2017
期刊:
Comput. Math. Appl.
影响因子:
--
作者:
M. Arshad;Eun‐Jae Park;Dong
通讯作者:
Dong
影响因子:
7.2
作者:
O. Durán;P. Devloo;S. Gomes;F. Valentin
通讯作者:
F. Valentin