Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/45252
Title: Tetrahedral mesh generation for environmental problems over complex terrains
Authors: Montenegro, Rafael 
Montero, Gustavo 
Escobar, José María 
Rodríguez, Eduardo 
González-Yuste, José Maria
UNESCO Clasification: 120110 Algebra lineal
1206 Análisis numérico
Keywords: Delaunay triangulation
Inverted element
Tetrahedral mesh
Node distribution
Free node
Issue Date: 2002
Journal: Lecture Notes in Computer Science 
Conference: International Conference on Computational Science 
International Conference on Computational Science, ICCS 2002 
Abstract: In the finite element simulation of environmental processes that occur in a three-dimensional domain defined over an irregular terrain, a mesh generator capable of adapting itself to the topographic characteristics is essential. The present study develops a code for generating a tetrahedral mesh from an ”optimal” node distribution in the domain. The main ideas for the construction of the initial mesh combine the use of a refinement/derefinement algorithm for two-dimensional domains and a tetrahedral mesh generator algorithm based on Delaunay triangulation. Moreover, we propose a procedure to optimise the resulting mesh. A function to define the vertical distance between nodes distributed in the domain is also analysed. Finally, these techniques are applied to the construction of meshes adapted to the topography of the southern section of La Palma (Canary Islands).
URI: http://hdl.handle.net/10553/45252
ISBN: 978-3-540-43591-4
3540435913
ISSN: 0302-9743
DOI: 10.1007/3-540-46043-8_33
Source: Sloot P.M.A., Hoekstra A.G., Tan C.J.K., Dongarra J.J. (eds) Computational Science — ICCS 2002. Lecture Notes in Computer Science, vol 2329, p 335-344. Springer, Berlin, Heidelberg
Appears in Collections:Actas de congresos
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