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Anisotropic Perfectly Matched Layers for Elastic Waves in Cartesian and Curvilinear Coordinates

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dc.contributor.author Zheng, Yibing
dc.contributor.author Huang, Xiaojun
dc.contributor.other Massachusetts Institute of Technology. Earth Resources Laboratory en_US
dc.date.accessioned 2011-12-21T21:24:33Z
dc.date.available 2011-12-21T21:24:33Z
dc.date.issued 2002
dc.identifier.uri http://hdl.handle.net/1721.1/67857
dc.description.abstract We develop new numerical anisotropic perfectly matched layer (PML) boundaries for elastic waves in Cartesian, cylindrical and spherical coordinate systems. The elasticity tensor of this absorbing boundary is chosen to be anisotropic and complex so that waves from the computational domain are attenuated in the boundary layer without reflection. The new PMLs are easy to formulate for both isotropic and anisotropic solid media. They utilize fewer unknowns in a general three-dimensional problem than the existing elastic wave PMLs using the field splitting scheme. Moreover, it can be implemented directly to the finite element method (FEM), as well as the finite difference time domain (FDTD) method. The high efficiency of these PMLs is illustrated by some numerical samples in FEM. en_US
dc.description.sponsorship Massachusetts Institute of Technology. Earth Resources Laboratory en_US
dc.description.sponsorship United States. National Aeronautics and Space Administration (Grant #NAG3-2147) en_US
dc.description.sponsorship Massachusetts Institute of Technology. Borehole Acoustics and Logging Consortium en_US
dc.publisher Massachusetts Institute of Technology. Earth Resources Laboratory en_US
dc.relation.ispartofseries Earth Resources Laboratory Industry Consortia Annual Report;2002-04
dc.title Anisotropic Perfectly Matched Layers for Elastic Waves in Cartesian and Curvilinear Coordinates en_US
dc.type Technical Report en_US
dc.contributor.mitauthor Zheng, Yibing
dc.contributor.mitauthor Huang, Xiaojun
dspace.orderedauthors Zheng, Yibing; Huang, Xiaojun en_US


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