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dc.rights.licenseopenen_US
dc.contributor.authorHOU, Dianming
dc.contributor.authorZHU, Hongyi
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorXU, Chuanju
dc.date.accessioned2021-12-14T16:45:18Z
dc.date.available2021-12-14T16:45:18Z
dc.date.issued2021-02-27
dc.identifier.issn1017-1398en_US
dc.identifier.urioai:crossref.org:10.1007/s11075-021-01068-y
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/124175
dc.description.abstractEnIn this paper, we propose and analyze high order efficient schemes for the time frac- tional Allen-Cahn equation. The proposed schemes are based on the L1 discretization for the time fractional derivative and the extended scalar auxiliary variable (SAV) approach developed very recently to deal with the nonlinear terms in the equation. The main contributions of the paper consist in: 1) constructing first and higher order unconditionally stable schemes for different mesh types, and proving the unconditional stability of the constructed schemes for the uniform mesh; 2) carrying out numerical experiments to verify the efficiency of the schemes and to investigate the coarsening dynamics governed by the time fractional Allen-Cahn equation. Particularly, the influence of the fractional order on the coarsening behavior is carefully examined. Our numerical evidence shows that the proposed schemes are more robust than the existing methods, and their efficiency is less restricted to particular forms of the nonlinear potentials.
dc.language.isoENen_US
dc.rightsAttribution 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/*
dc.sourcecrossref
dc.title.enHighly efficient schemes for time-fractional Allen-Cahn equation using extended SAV approach
dc.typeArticle de revueen_US
dc.identifier.doi10.1007/s11075-021-01068-yen_US
dc.subject.halSciences de l'ingénieur [physics]/Matériauxen_US
bordeaux.journalNumerical Algorithmsen_US
bordeaux.page1077-1108en_US
bordeaux.volume88en_US
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295en_US
bordeaux.issue3en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionCNRSen_US
bordeaux.institutionINRAEen_US
bordeaux.institutionArts et Métiersen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-03480635
hal.version1
hal.date.transferred2021-12-14T16:45:21Z
hal.exporttrue
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dc.rights.ccPas de Licence CCen_US
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