Low-order Raviart–Thomas approximations of axisymmetric Darcy flow
Low-order Raviart–Thomas approximations of axisymmetric Darcy flow
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轴对称达西流的低阶 Raviart–Thomas 近似
DOI:
10.1016/j.jmaa.2018.12.078
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发表时间:
2019
影响因子:
1.3
通讯作者:
Zytoon, Ahmed
中科院分区:
文献类型:
--
作者:
Neilan, Michael;Zytoon, Ahmed
In this paper, we study the lowest-order mixed finite element method for the axisymmetric Darcy problem using Raviart–Thomas elements. In contrast to the Cartesian setting, the method is non-conforming in the sense that the discretely divergence-free functions are not solenoidal. We derive several estimates that measure the inconsistency of the method and derive error estimates of the discrete pressure and velocity solutions. We show that if the domain is convex, then the errors converge with optimal order modulo logarithmic terms. Numerical experiments are presented, and they indicate that the estimates are sharp.
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影响因子:
2
作者:
D. Copeland;Jay Gopalakrishnan;M. Oh
通讯作者:
M. Oh
影响因子:
2.9
作者:
V. Ervin
通讯作者:
V. Ervin
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
Z. Belhachmi;C. Bernardi;S. Deparis;F. Hecht
通讯作者:
F. Hecht
DOI:
10.1007/978-3-663-11385-0
发表时间:
1987
期刊:
Matematicheskii Sbornik
影响因子:
--
作者:
A. Kufner;A. Sändig
通讯作者:
A. Sändig
影响因子:
2.1
作者:
P. Lacoste
通讯作者:
P. Lacoste