Locally Adapted Tetrahedral Meshes Using Bisection

Authors:
Douglas N. Arnold;Arup Mukherjee;Luc Pouly
Affiliations:
-;-;-
Venue:
SIAM Journal on Scientific Computing
Year:
2000

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Abstract

We present an algorithm for the construction of locally adapted conformal tetrahedral meshes. The algorithm is based on bisection of tetrahedra. A new data structure is introduced, which simplifies both the selection of the refinement edge of a tetrahedron and the recursive refinement to conformity of a mesh once some tetrahedra have been bisected. We prove that repeated application of the algorithm leads to only finitely many tetrahedral shapes up to similarity, and we bound the amount of additional refinement that is needed to achieve conformity. Numerical examples of the effectiveness of the algorithm are presented.