A Uniformly Stable Nonconforming FEM Based on Weighted Interior Penalties for Darcy-Stokes-Brinkman Equations
A Uniformly Stable Nonconforming FEM Based on Weighted Interior Penalties for Darcy-Stokes-Brinkman Equations
复制标题
基于Darcy-Stokes-Brinkman方程加权内罚的一致稳定非一致性有限元
DOI:
10.4208/nmtma.2017.m1610
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发表时间:
2017-02
期刊:
影响因子:
--
通讯作者:
黄佩奇
中科院分区:
文献类型:
--
作者:
黄佩奇
A nonconforming rectangular finite element method is proposed to solve a fluid structure interaction problem characterized by the Darcy-Stokes-Brinkman Equation with discontinuous coefficients across the interface of different structures. A uniformly stable mixed finite element together with Nitsche-type matching conditions that automatically adapt to the coupling of different sub-problem combinations are utilized in the discrete algorithm. Compared with other finite element methods in the literature, the new method has some distinguished advantages and features. The Boland-Nicolaides trick is used in proving the inf-sup condition for the multidomain discrete problem. Optimal error estimates are derived for the coupled problem by analyzing the approximation errors and the consistency errors. Numerical examples are also provided to confirm the theoretical results.
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影响因子:
1.1
作者:
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通讯作者:
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DOI:
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2004
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期刊:
SIAM J. Numer. Anal.
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1986-06
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通讯作者:
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