A damping preconditioner for time-harmonic wave equations in fluid and elastic material
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.
Main Authors
Format
Articles
Research article
Published
2009
Series
Subjects
Publication in research information system
Publisher
Elsevier
Original source
http://dx.doi.org/10.1016/j.jcp.2008.10.036
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-20112211789Käytä tätä linkitykseen.
Review status
Peer reviewed
ISSN
0021-9991
DOI
https://doi.org/10.1016/j.jcp.2008.10.036
Language
English
Published in
Journal Of Computational Physics
Is part of publication
Journal of Computational Physics
Citation
- Airaksinen, T., Pennanen, A., & Toivanen, J. (2009). A damping preconditioner for time-harmonic wave equations in fluid and elastic material. Journal Of Computational Physics, 228(5), 1466-1479. https://doi.org/10.1016/j.jcp.2008.10.036
License
Copyright© Elsevier