Numerical comparison of three a posteriori error estimators for nonconforming finite element method
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01. Feb. 2023
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Online veröffentlicht: 01. Feb. 2023
Seitenbereich: 1 - 26
Eingereicht: 26. Nov. 2022
Akzeptiert: 28. Dez. 2022
DOI: https://doi.org/10.2478/mjpaa-2023-0001
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© 2023 B. Achchab et al., published by Sciendo
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In this paper, we propose to compare three a posteriori error estimators namely equilibrated, star-based and residual based for the Poisson problem and the Stokes problem with lowest-order Crouzeix-Raviart finite element discretization. The numerical results are presented to compare the performance of the three estimators in an adaptive refinement strategy.