Print Email Facebook Twitter A 3D Tetrahedral Mesh Generator for Seismic Problems Title A 3D Tetrahedral Mesh Generator for Seismic Problems Author Kononov, A. Minisini, S. Zhebel, E. Mulder, W.A. Faculty Civil Engineering and Geosciences Department Geoscience & Engineering Date 2012-06-04 Abstract Finite-element modelling of seismic wave propagation on tetrahedra requires meshes that accurately follow interfaces between impedance contrasts or surface topography and have element sizes proportional to the local velocity. We explain a mesh generation approach by example. Starting from a finite-difference representation of the velocity model, triangulated surfaces are generated along impedance discontinuities. These define subdomains that are meshed independently and in parallel, honouring the local velocity values. The resulting volumetric meshes are merged into a single mesh. The approach is flexible, efficient, scalable and capable of producing quality meshes. To reference this document use: http://resolver.tudelft.nl/uuid:a5077cbf-4fe2-4560-a424-4bbf47f732a8 Publisher EAGE ISBN 978-90-73834-27-9 Source 74th EAGE Conference & Exhibition incorporating SPE EUROPEC 2012, Copenhagen, Denmark, 4-7 June 2012 Part of collection Institutional Repository Document type conference paper Rights (c) 2012 The Author(s) Files PDF 294729.pdf 726.4 KB Close viewer /islandora/object/uuid:a5077cbf-4fe2-4560-a424-4bbf47f732a8/datastream/OBJ/view