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Section B

Adaptive dimension splitting algorithm for three-dimensional elliptic equations

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Pages 2535-2553 | Received 27 Dec 2012, Accepted 18 Dec 2013, Published online: 09 Apr 2014
 

Abstract

An adaptive dimension splitting algorithm for three-dimensional (3D) elliptic equations is presented in this paper. We propose residual and recovery-based error estimators with respect to XY plane direction and Z direction, respectively, and construct the corresponding adaptive algorithm. Two-sided bounds of the estimators guarantee the efficiency and reliability of such error estimators. Numerical examples verify their efficiency both in estimating the error and in refining the mesh adaptively. This algorithm can be compared with or even better than the 3D adaptive finite element method with tetrahedral elements in some cases. What is more, our new algorithm involves only two-dimensional mesh and one-dimensional mesh in the process of refining mesh adaptively, and it can be implemented in parallel.

2000 AMS Subject Classifications:

This work is supported by NSFC (Grant No. 11171269), the Ph.D. Programs Foundation of Ministry of Education of China (20110201110027) and the Fundamental Research Funds for the Central Universities.

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