Mesh generation is the practice of generating a polygonal or polyhedral mesh that approximates a geometric domain. The term "grid generation" is often used interchangeably. Typical uses are for rendering to a computer screen or for physical simulation such as finite element analysis or computational fluid dynamics. The input model form can vary greatly but common sources are CAD, NURBS, B-rep and STL (file format). The field is highly interdisciplinary, with contributions found in mathematics, computer science, and engineering.
Three-dimensional meshes created for finite element analysis need to consist of tetrahedra, pyramids, prisms or hexahedra. Those used for the finite volume method can consist of arbitrary polyhedra. Those used for finite difference methods usually need to consist of piecewise structured arrays of hexahedra known as multi-block structured meshes.
See also
- Tessellation
- Regular Grid
- Unstructured grid
- Polygon mesh
References
- Edelsbrunner, Herbert (2001), Geometry and Topology for Mesh Generation, Cambridge University Press, ISBN 9780521793094.
- Frey, Pascal Jean; George, Paul-Louis (2000), Mesh Generation: Application to Finite Elements, Hermes Science, ISBN 9781903398005.
- Thompson, J. F.; Warsi, Z. U. A.; Mastin, C. W. (1985), Numerical Grid Generation: Foundations and Applications, North-Holland, Elsevier.
- P. Smith and S. S. Sritharan (1988). "Theory of Harmonic Grid Generation". Complex Variables 10: 359-369.. http://www.nps.edu/Academics/Schools/GSEAS/SRI/R3.pdf.
- S. S. Sritharan (1992). "Theory of Harmonic Grid Generation-II". Applicable Analysis 44: 127-149..
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