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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3497

Authors: Casarotti, E.*
Stupazzini, M.*
Lee, S. J.*
Komatitsch, D.*
Piersanti, A.*
Tromp, J.*
Editors: Brewer, M. L.
Marcum, D.
Title: CUBIT and seismic wave propagation based upon the Spectral-Element Method: An advanced unstructured mesher for complex 3D geological media
Issue Date: 2008
URL: http://www.springer.com/978-3-540-75102-1
ISBN: 978-3-540-75102-1
Keywords: meshing
seismic wave propagation
spectral element methond
Abstract: Unstructured hexahedral mesh generation is a critical part of the model- ing process in the Spectral-Element Method (SEM). We present some ex- amples of seismic wave propagation in complex geological models, automati- cally meshed on a parallel machine based upon CUBIT (Sandia Laboratory, cubit.sandia.gov), an advanced 3D unstructured hexahedral mesh genera- tor that offers new opportunities for seismologist to design, assess, and improve the quality of a mesh in terms of both geometrical and numerical accuracy. The main goal is to provide useful tools for understanding seismic phenomena due to surface topography and subsurface structures such as low wave-speed sedimentary basins. Our examples cover several typical geophysical problems: 1) “layer-cake” volumes with high-resolution topography and complex solid- solid interfaces (such as the Campi Flegrei Caldera Area in Italy), and 2) models with an embedded sedimentary basin (such as the Taipei basin in Taiwan or the Grenoble Valley in France).
Appears in Collections:04.06.09. Waves and wave analysis
Book chapters
05.01.05. Algorithms and implementation

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2007 casarotti imr_final.pdfmain article2.93 MBAdobe PDFView/Open


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