DUNE;
hierarchical grids;
interface;
finite elements;
finite volumes;
entity complex;
geometric realization;
father relation;
index maps;
parallelization;
D O I:
10.1007/s00607-008-0003-x
中图分类号:
TP301 [理论、方法];
学科分类号:
081202 ;
摘要:
We give a mathematically rigorous definition of a grid for algorithms solving partial differential equations. Unlike previous approaches (Benger 2005, PhD thesis; Berti 2000, PhD thesis), our grids have a hierarchical structure. This makes them suitable for geometric multigrid algorithms and hierarchical local grid refinement. The description is also general enough to include geometrically non-conforming grids. The definitions in this article serve as the basis for an implementation of an abstract grid interface as C++ classes in the framework (Bastian et al. 2008, this issue).