Mortar Finite Elements with Dual Lagrange Multipliers: Some Applications

Mortar Finite Elements with Dual Lagrange Multipliers: Some Applications
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具有双拉格朗日乘子的迫击炮有限元:一些应用

DOI:
10.1007/3-540-26825-1_31
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发表时间:
2005
影响因子:
4.1
通讯作者:
B. Wohlmuth
B. Wohlmuth
中科院分区:
工程技术2区
文献类型:
--
作者:
B. Lamichhane;B. Wohlmuth

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区域分解技术为偏微分方程的数值逼近提供了一个强大的工具。我们考虑具有对偶拉格朗日乘子空间的砂浆技术来耦合不同的离散化方案。众所周知,线性砂浆有限元在能量范数下的离散化误差为h阶。在这里,我们将这些技术应用于曲线边界、非线性问题以及不同模型方程的耦合和离散化。
Domain decomposition techniques provide a powerful tool for the numerical approximation of partial differential equations. We consider mortar techniques with dual Lagrange multiplier spaces to couple different discretization schemes. It is well known that the discretization error for linear mortar finite elements in the energy norm is of order h. Here, we apply these techniques to curvilinear boundaries, nonlinear problems and the coupling of different model equations and discretizations.