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Author
Date
1999-10Type
- Report
ETH Bibliography
yes
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Abstract
An exact nonreflecting boundary condition was derived previously for time-dependent elastic waves in three space dimensions [1]. It is local in time, nonlocal on the artificial boundary, and involves only first derivatives of the displacement. Here it is shown how to combine that boundary condition with finite difference and finite element methods. Stability issues are discussed. Numerical examples demonstrate the high improvement in accuracy over standard methods. Show more
Permanent link
https://doi.org/10.3929/ethz-a-004284981Publication status
publishedExternal links
Journal / series
SAM Research ReportVolume
Publisher
Seminar for Applied Mathematics, ETH ZurichSubject
elastic waves; wave propagation; nonreflecting boundary conditions; absorbing boundary conditions; elasticity; scattering theoryOrganisational unit
02501 - Seminar für Angewandte Mathematik / Seminar for Applied Mathematics
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ETH Bibliography
yes
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