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An algorithm for adaptive refinement of triangular element meshes
Author(s) -
Nambiar R. V.,
Valera R. S.,
Lawrence K. L.,
Morgan Robert B.,
Amil David
Publication year - 1993
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620360308
Subject(s) - polygon mesh , adaptive mesh refinement , finite element method , volume mesh , algorithm , computer science , element (criminal law) , mesh generation , computational science , structural engineering , computer graphics (images) , engineering , law , political science
A simple algorithm is developed for adaptive and automatic h refinement of two‐dimensional triangular finite element meshes. The algorithm is based on an element refinement ratio that can be calculated from an a posteriori error indicator. The element subdivision algorithm is robust and recursive. Smooth transition between large and small elements is achieved without significant degradation of the aspect ratio of the elements in the mesh. Several example problems are presented to illustrate the utility of the approach.