A posteriori error estimate for the H(div) conforming mixed finite element for the coupled Darcy-Stokes system

A posteriori error estimate for the H(div) conforming mixed finite element for the coupled Darcy-Stokes system
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耦合达西-斯托克斯系统 H(div) 符合混合有限元的后验误差估计

DOI:
10.1016/j.cam.2013.05.021
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发表时间:
2014
影响因子:
2.4
通讯作者:
Yanqiu Wang
Yanqiu Wang
中科院分区:
数学2区
文献类型:
--
作者:
Wenbin Chen;Yanqiu Wang

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An H (d i v) conforming mixed finite element method has been proposed for the coupled Darcy–Stokes flow in Kanschat and Rivière (2010)[12], which imposes normal continuity on the velocity field strongly across the Darcy–Stokes interface. Here, we develop an a posteriori error estimator for this H (d i v) conforming mixed method, and prove its global reliability and efficiency. Due to the strong coupling on the interface, special techniques need to be employed in the proof. This is the main difference between this paper and Babuška and Gatica’s (2010) work [38], in which they analyzed an a posteriori error estimator for the mixed formulation using weakly coupled interface conditions.
DOI: 10.1137/100783996
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期刊: SIAM J. Sci. Comput.
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