Stabilized CutFEM for the convection problem on surfaces
Stabilized CutFEM for the convection problem on surfaces
复制标题
针对表面对流问题的稳定 CutFEM
DOI:
10.1007/s00211-018-0989-8
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发表时间:
2018
影响因子:
2.1
通讯作者:
Burman E
中科院分区:
文献类型:
--
作者:
Burman E
We develop a stabilized cut finite element method for the convection problem on a surface based on continuous piecewise linear approximation and gradient jump stabilization terms. The discrete piecewise linear surface cuts through a background mesh consisting of tetrahedra in an arbitrary way and the finite element space consists of piecewise linear continuous functions defined on the background mesh. The variational form involves integrals on the surface and the gradient jump stabilization term is defined on the full faces of the tetrahedra. The stabilization term serves two purposes: first the method is stabilized and secondly the resulting linear system of equations is algebraically stable. We establish stability results that are analogous to the standard meshed flat case and proveorder convergence in the natural norm associated with the method and that the full gradient enjoysorder of convergence in. We also show that the condition number of the stiffness matrix is bounded by. Finally, our results are verified by numerical examples.
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影响因子:
14.2
作者:
Dziuk, Gerhard;Elliott, Charles M.
通讯作者:
Elliott, Charles M.
影响因子:
2.1
作者:
Deckelnick, Klaus;Dziuk, Gerhard;Heine, Claus-Justus
通讯作者:
Heine, Claus-Justus
影响因子:
2.9
作者:
A. Demlow;M. Olshanskii
通讯作者:
M. Olshanskii
影响因子:
2.1
作者:
Olshanskii, Maxim A.;Reusken, Arnold;Xu, Xianmin
通讯作者:
Xu, Xianmin
DOI:
10.1016/j.cma.2010.05.011
发表时间:
2010-01-01
影响因子:
7.2
作者:
Burman, Erik;Hansbo, Peter
通讯作者:
Hansbo, Peter