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Article: Application of perfectly matched layers to the transient modeling of subsurface EM problems

TitleApplication of perfectly matched layers to the transient modeling of subsurface EM problems
Authors
Issue Date1997
PublisherSociety of Exploration Geophysicists. The Journal's web site is located at http://scitation.aip.org/geophysics
Citation
Geophysics, 1997, v. 62 n. 6, p. 1730-1736 How to Cite?
AbstractBerenger's perfectly matched layers (PML) have been found to be very efficient as a material absorbing boundary condition (ABC) for finite-difference time-domain (FDTD) modeling of lossless media. In this paper, we apply the PML technique to truncate the simulation region of conductive media. Examples are given to show some possible applications of the PML technique to subsurface problems with lossy media. To apply the PML ABC for lossy media, we first modify the original 3-D Maxwell's equations to achieve PML at the boundaries of the simulation region. The modified equations are then solved by using a staggered grid with a central-differencing scheme. A 3-D FDTD code has been written on the basis of our PML formulation to simulate the electromagnetic field responses of a dipole source in both lossless and lossy media. The code is first tested against analytical solutions for homogeneous media of different losses and then applied to some subsurface problems, such as a geological fault and a buried gas tank. Very interesting propagation and scattering phenomena are observed ifom the simulation results. Some analyses are also given to explain the physical phenomena of the calculated waveforms.
Persistent Identifierhttp://hdl.handle.net/10722/182582
ISSN
2015 Impact Factor: 2.017
2015 SCImago Journal Rankings: 1.646
References

 

DC FieldValueLanguage
dc.contributor.authorChen, YHen_US
dc.contributor.authorChew, WCen_US
dc.contributor.authorOristaglio, MLen_US
dc.date.accessioned2013-05-02T05:15:58Z-
dc.date.available2013-05-02T05:15:58Z-
dc.date.issued1997en_US
dc.identifier.citationGeophysics, 1997, v. 62 n. 6, p. 1730-1736en_US
dc.identifier.issn0016-8033en_US
dc.identifier.urihttp://hdl.handle.net/10722/182582-
dc.description.abstractBerenger's perfectly matched layers (PML) have been found to be very efficient as a material absorbing boundary condition (ABC) for finite-difference time-domain (FDTD) modeling of lossless media. In this paper, we apply the PML technique to truncate the simulation region of conductive media. Examples are given to show some possible applications of the PML technique to subsurface problems with lossy media. To apply the PML ABC for lossy media, we first modify the original 3-D Maxwell's equations to achieve PML at the boundaries of the simulation region. The modified equations are then solved by using a staggered grid with a central-differencing scheme. A 3-D FDTD code has been written on the basis of our PML formulation to simulate the electromagnetic field responses of a dipole source in both lossless and lossy media. The code is first tested against analytical solutions for homogeneous media of different losses and then applied to some subsurface problems, such as a geological fault and a buried gas tank. Very interesting propagation and scattering phenomena are observed ifom the simulation results. Some analyses are also given to explain the physical phenomena of the calculated waveforms.en_US
dc.languageengen_US
dc.publisherSociety of Exploration Geophysicists. The Journal's web site is located at http://scitation.aip.org/geophysicsen_US
dc.relation.ispartofGeophysicsen_US
dc.titleApplication of perfectly matched layers to the transient modeling of subsurface EM problemsen_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.scopuseid_2-s2.0-0031278087en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0031278087&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume62en_US
dc.identifier.issue6en_US
dc.identifier.spage1730en_US
dc.identifier.epage1736en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChen, YH=7601426431en_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US
dc.identifier.scopusauthoridOristaglio, ML=7003557579en_US

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