Premium
Stencil reduction algorithms for the local discontinuous Galerkin method
Author(s) -
Castillo Paul E.
Publication year - 2009
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.2738
Subject(s) - stencil , discontinuous galerkin method , reduction (mathematics) , algorithm , variety (cybernetics) , galerkin method , stiffness matrix , mathematics , grid , finite element method , matrix (chemical analysis) , mathematical optimization , operator (biology) , computer science , computational science , geometry , engineering , biochemistry , statistics , materials science , structural engineering , chemistry , repressor , transcription factor , composite material , gene
The problem of reducing the stencil of the local discontinuous Galerkin method applied to second‐order differential operator is discussed. Heuristic algorithms to minimize the total number of non‐zero blocks of the reduced stiffness matrix are presented and tested on a wide variety of unstructured and structured grids in 2D and 3D. Copyright © 2009 John Wiley & Sons, Ltd.