...
首页> 外文期刊>Computer Methods in Applied Mechanics and Engineering >Reliability and efficiency of an anisotropic Zienkiewicz-Zhu error estimator
【24h】

Reliability and efficiency of an anisotropic Zienkiewicz-Zhu error estimator

机译:各向异性Zienkiewicz-Zhu误差估计器的可靠性和效率

获取原文
获取原文并翻译 | 示例
           

摘要

In this paper we study the efficiency and the reliability of an anisotropic a posteriori error estimator in the case of the Poisson problem supplied with mixed boundary conditions. The error estimator may be classified as a residual-based one, but its novelty is twofold: firstly, it employs anisotropic estimates of the interpolation error for linear triangular finite elements and, secondly, it makes use of the Zienkiewicz-Zhu recovery procedure to approximate the gradient of the exact solution. Finally, we describe the adaptive procedure used to obtain a numerical solution satisfying a given accuracy, and we include some numerical test cases to assess the robustness of the proposed numerical algorithm.
机译:在本文中,我们研究了混合边界条件下泊松问题下各向异性后验误差估计器的效率和可靠性。误差估计器可以归类为基于残差的估计器,但其新颖性是双重的:首先,它使用线性三角形有限元的插值误差的各向异性估计,其次,它使用Zienkiewicz-Zhu恢复程序进行近似精确解的梯度。最后,我们描述了用于获得满足给定精度的数值解的自适应过程,并包括一些数值测试案例,以评估所提出数值算法的鲁棒性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号