Full gradient stabilized cut finite element methods for surface partial differential equations
Full gradient stabilized cut finite element methods for surface partial differential equations
复制标题
表面偏微分方程的全梯度稳定切割有限元法
DOI：
10.1016/j.cma.2016.06.033
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发表时间：
2016
影响因子：
7.2
通讯作者：
Burman E
中科院分区：
文献类型：
--
作者：
Burman E
We propose and analyze a new stabilized cut finite element method for the Laplace–Beltrami operator on a closed surface. The new stabilization term provides control of the full R 3 gradient on the active mesh consisting of the elements that intersect the surface. Compared to face stabilization, based on controlling the jumps in the normal gradient across faces between elements in the active mesh, the full gradient stabilization is easier to implement and does not significantly increase the number of nonzero elements in the mass and stiffness matrices. The full gradient stabilization term may be combined with a variational formulation of the Laplace–Beltrami operator based on tangential or full gradients and we present a simple and unified analysis that covers both cases. The full gradient stabilization term gives rise to a consistency error which, however, is of optimal order for piecewise linear elements, and we obtain optimal order a priori error estimates in the energy and L 2 norms as well as an optimal bound of the condition number. Finally, we present detailed numerical examples where we in particular study the sensitivity of the condition number and error on the stabilization parameter.
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影响因子：
2.1
作者：
M. Olshanskii;Arnold Reusken
通讯作者：
M. Olshanskii;Arnold Reusken
影响因子：
14.2
作者：
Dziuk, Gerhard;Elliott, Charles M.
通讯作者：
Elliott, Charles M.
基于体网格的自适应曲面有限元方法
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
影响因子：
2.1
作者：
Burman, Erik;Hansbo, Peter;Massing, Andre
通讯作者：
Massing, Andre