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Mixed-element decomposition method for three-dimensional grid adaptation

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2 Author(s)
Leitner, E. ; Inst. for Microelectron., Tech. Univ. Wien, Austria ; Selberherr, S.

A new method for adaptive tessellation of three-dimensional (3-D) grids is presented. A mixed-element decomposition method is introduced for local refinement of fully unstructured grids, consisting of tetrahedra and octahedra. The method preserves the shape of the elements of the initial grid and therefore the element quality. Furthermore, local anisotropies of the initial grid are preserved. The developed implementation allows efficient adaptation and is used in a finite element program for simulation of thermal diffusion processes

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Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on  (Volume:17 ,  Issue: 7 )