Mesh optimization for problems with steep gradients

Abstract

In this paper we present a new method of mesh optimization which automatically accounts for steep gradients. With this method, the user needs no previous knowledge of the problem. The method is based on the concept of error in the constitutive relation, coupled with an h‐version remeshing procedure. The steep gradient regions are detected by using the local errors, which are taken into account using the finite energy element. Consequently the procedure can be extended to all estimators of discretization errors. It is implemented in our code ESTEREF, a post‐processor of error computation and mesh optimization that can be used with any finite element code. Numerous examples show the capabilities of the proposed method.

Citation

Coorevits, P., Ladevèze, P. and Pelle, J.‐. (1994), "Mesh optimization for problems with steep gradients", Engineering Computations, Vol. 11 No. 2, pp. 129-144. https://doi.org/10.1108/02644409410799245