Generating 3-dimensional semi-unstructured grids

@inproceedings{LepageRM2001,
 abstract = { In GOCAD, a 3-dimensional model is de£ned as a partition of the 3D space into a set of bounded regions. Each region can then be £lled with any support: tetrahedra, hexahedra, wedges, ... Grids are said to be structured when their topology is implicit, i.e. when all their cells have basically the same number of faces. In the other cases, the grids are called unstructured. This paper presents a semi-unstructured gridding algorithm: the generated grids are £lled both with structured (hexahedral) and unstructured (polyhedric) cells. This method can be used to model the neighborhood of the faults in an ef£cient way, as the geometry of the polyhedra can easily accommodate the geometry of the faults. On the other hand, far away from the faults, the cells remain structured, which guarantees faster computation times for ¤ow simulators and geostatistical algorithms, as the cells keep a low number of faces and simple topological relationship. },
 author = { Lepage, François },
 booktitle = { 21st gOcad Meeting },
 month = { "june" },
 publisher = { ASGA },
 title = { Generating 3-dimensional semi-unstructured grids },
 year = { 2001 }
}