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Article: Perfectly matched layers for elastodynamics: A new absorbing boundary condition

TitlePerfectly matched layers for elastodynamics: A new absorbing boundary condition
Authors
Issue Date1996
PublisherWorld Scientific Publishing Co Pte Ltd. The Journal's web site is located at http://www.worldscinet.com/jca/jca.shtml
Citation
Journal Of Computational Acoustics, 1996, v. 4 n. 4, p. 341-359 How to Cite?
AbstractThe use of perfectly matched layers (PML) has recently been introduced by Berenger as a material absorbing boundary condition (ABC) for electromagnetic waves. In this paper, we will first prove that a fictitious elastodynamic material half-space exists that will absorb an incident wave for all angles and all frequencies. Moreover, the wave is attenuative in the second half-space. As a consequence, layers of such material could be designed at the edge of a computer simulation region to absorb outgoing waves. Since this is a material ABC, only one set of computer codes is needed to simulate an open region. Hence, it is easy to parallelize such codes on multiprocessor computers. For instance, it is easy to program massively parallel computers on the SIMD (single instruction multiple data) mode for such codes. We will show two- and three-dimensional computer simulations of the PML for the linearized equations of elastodynamics. Comparison with Liao's ABC will be given.
Persistent Identifierhttp://hdl.handle.net/10722/182574
ISSN
2015 Impact Factor: 0.542
2015 SCImago Journal Rankings: 0.583
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChew, WCen_US
dc.contributor.authorLiu, QHen_US
dc.date.accessioned2013-05-02T05:15:55Z-
dc.date.available2013-05-02T05:15:55Z-
dc.date.issued1996en_US
dc.identifier.citationJournal Of Computational Acoustics, 1996, v. 4 n. 4, p. 341-359en_US
dc.identifier.issn0218-396Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/182574-
dc.description.abstractThe use of perfectly matched layers (PML) has recently been introduced by Berenger as a material absorbing boundary condition (ABC) for electromagnetic waves. In this paper, we will first prove that a fictitious elastodynamic material half-space exists that will absorb an incident wave for all angles and all frequencies. Moreover, the wave is attenuative in the second half-space. As a consequence, layers of such material could be designed at the edge of a computer simulation region to absorb outgoing waves. Since this is a material ABC, only one set of computer codes is needed to simulate an open region. Hence, it is easy to parallelize such codes on multiprocessor computers. For instance, it is easy to program massively parallel computers on the SIMD (single instruction multiple data) mode for such codes. We will show two- and three-dimensional computer simulations of the PML for the linearized equations of elastodynamics. Comparison with Liao's ABC will be given.en_US
dc.languageengen_US
dc.publisherWorld Scientific Publishing Co Pte Ltd. The Journal's web site is located at http://www.worldscinet.com/jca/jca.shtmlen_US
dc.relation.ispartofJournal of Computational Acousticsen_US
dc.titlePerfectly matched layers for elastodynamics: A new absorbing boundary conditionen_US
dc.typeArticleen_US
dc.identifier.emailChew, WC: wcchew@hku.hken_US
dc.identifier.authorityChew, WC=rp00656en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1142/S0218396X96000118en_US
dc.identifier.scopuseid_2-s2.0-0030444273en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030444273&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume4en_US
dc.identifier.issue4en_US
dc.identifier.spage341en_US
dc.identifier.epage359en_US
dc.identifier.isiWOS:A1996VZ78500001-
dc.publisher.placeSingaporeen_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US
dc.identifier.scopusauthoridLiu, QH=26643168800en_US

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