Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
520176 | Journal of Computational Physics | 2009 | 14 Pages |
Abstract
A physical damping is considered as a preconditioning technique for acoustic and elastic wave scattering. The earlier preconditioners for the Helmholtz equation are generalized for elastic materials and three-dimensional domains. An algebraic multigrid method is used in approximating the inverse of damped operators. Several numerical experiments demonstrate the behavior of the method in complicated two-dimensional and three-dimensional domains.
Keywords
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Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Tuomas Airaksinen, Anssi Pennanen, Jari Toivanen,