A-POSTERIORI ESTIMATION AND ADAPTIVE-CONTROL OF THE POLLUTION ERROR IN THE H-VERSION OF THE FINITE-ELEMENT METHOD

被引：81

作者：

BABUSKA, I

STROUBOULIS, T

UPADHYAY, CS

GANGARAJ, SK

机构：

[1] UNIV MARYLAND,INST PHYS SCI & TECHNOL,COLLEGE PK,MD 20742

[2] UNIV MARYLAND,DEPT MATH,COLLEGE PK,MD 20742

[3] TEXAS A&M UNIV,DEPT AEROSP ENGN,COLLEGE STN,TX 77843

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | 1995年 / 38卷 / 24期

关键词：

FINITE-ELEMENT METHOD; A POSTERIORI ERROR ESTIMATION; POLLUTION ERROR;

D O I：

10.1002/nme.1620382408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In References 1 and 2 we showed that the error in the finite-element solution has two parts, the local error and the pollution error, and we studied the effect of the pollution error on the quality of the local error-indicators and the quality of the derivatives recovered by local post-processing. Here we show that it is possible to construct a posteriori estimates of the pollution error in any patch of elements by employing the local error-indicators over the mesh outside the patch. We also give an algorithm for the adaptive control of the pollution error in any patch of elements of interest.

引用

收藏

页码：4207 / 4235

页数：29

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