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- W2323594501 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2014A 3D Discontinuous Galerkin method for the propagation and scattering of acousto-elastic wavesAuthors: Ruichao YeMaarten V. de HoopRuichao YePurdue USearch for more papers by this author and Maarten V. de HoopPurdue USearch for more papers by this authorhttps://doi.org/10.1190/segam2014-1535.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract We develop an approach for simulating coupled acoustoelastic wave phenomena, including fluid-solid boundaries where the solid is allowed to be anisotropic, with the Discontinuous Galerkin (DG) method. We use a coupled firstorder elastic strain-velocity, acoustic velocity-pressure formulation, avoid the diagonalization into polarized wave constituents such as in the approach based on solving elementwise Riemann problems, and essentially append penalty terms, based on interior boundary continuity conditions, to the numerical flux so that the consistency condition holds for the discretized Discontinuous Galerkin weak formulation. We incorporate the fluid-solid boundaries through these penalty terms and obtain a stable algorithm. Keywords: 3D, anisotropy, finite element, wave propagationPermalink: https://doi.org/10.1190/segam2014-1535.1FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2014ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2014 Pages: 5183 publication data© 2014 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 05 Aug 2014 CITATION INFORMATION RuichaoYe and Maarten V.de Hoop, (2014), A 3D Discontinuous Galerkin method for the propagation and scattering of acousto-elastic waves, SEG Technical Program Expanded Abstracts : 3329-3333. https://doi.org/10.1190/segam2014-1535.1 Plain-Language Summary Keywords3Danisotropyfinite elementwave propagationPDF DownloadLoading ..." @default.
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- W2323594501 title "A 3D Discontinuous Galerkin method for the propagation and scattering of acousto-elastic waves" @default.
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