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Second-order finite volume with hydrostatic reconstruction for tsunami simulation

2016-12Journal article Open access
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dc.contributor.authorClain, S.
dc.contributor.authorReis, C.
dc.contributor.authorCosta, R.
dc.contributor.authorFigueiredo, J.
dc.contributor.authorBaptista, Maria Ana Carvalho Viana
dc.contributor.authorMiranda, Jorge Miguel
dc.date.accessioned2017-03-14T09:37:00Z
dc.date.available2017-03-14T09:37:00Z
dc.date.issued2016-12
dc.description.abstractTsunami modeling commonly accepts the shallow water system as governing equations where the major difficulty is the correct treatment of the nonconservative term due to bathymetry variations. The finite volume method for solving the shallow water equations with such source terms has received great attention in the two last decades. The built-in conservation property, the capacity to correctly treat discontinuities, and the ability to handle complex bathymetry configurations preserving some steady state configurations (well-balanced scheme) make the method very efficient. Nevertheless, it is still a challenge to build an efficient numerical scheme, with very few numerical artifacts (e. g., small numerical diffusion, correct propagation of the discontinuities, accuracy, and robustness), to be used in an operational environment, and that is able to better capture the dynamics of the wet-dry interface and the physical phenomena that occur in the inundation area. In the first part of this paper, we present a new second-order finite volume code. The code is developed for the shallow water equations with a nonconservative term based on the hydrostatic reconstruction technology to achieve a well-balanced scheme and an adequate dry/wet interface treatment. A detailed presentation of the numerical method is given. In the second part of the paper, we highlight the advantages of the new numerical technique. We benchmark the numerical code against analytical, experimental, and field results to assess the robustness and the accuracy of the numerical code. Finally, we use the 28 February 1969 North East Atlantic tsunami to check the performance of the code with real data.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCLAIN, S.; [et al] – Second-order finite volume with hydrostatic reconstruction for tsunami simulation. Journal of Advances in Modeling Earth Systems. ISSN 1942-2466. Vol 8, N.º 4 (2016), pp. 1691-1713pt_PT
dc.identifier.doi10.1002/2015MS000603pt_PT
dc.identifier.issn1942-2466
dc.identifier.urihttp://hdl.handle.net/10400.21/6852
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Geophysical Unionpt_PT
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/doi/10.1002/2015MS000603/abstract?systemMessage=Wiley+Online+Library+will+be+unavailable+on+Saturday+25th+March+from+07%3A00+GMT+%2F+03%3A00+EDT+%2F+15%3A00+SGT+for+4+hours+for+essential+maintenance.++Apologies+for+the+inconvenience.pt_PT
dc.subjectShallow-water equationspt_PT
dc.subjectWell-balanced schemept_PT
dc.subjectUnstructures meshespt_PT
dc.subjectValidationpt_PT
dc.subjectEarthquakept_PT
dc.subjectPortugalpt_PT
dc.subjectFlowspt_PT
dc.subjectBeachpt_PT
dc.titleSecond-order finite volume with hydrostatic reconstruction for tsunami simulationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1713pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage1691pt_PT
oaire.citation.titleJournal of Advances in Modeling Earth Systemspt_PT
oaire.citation.volume8pt_PT
person.familyNamede Carvalho Viana Baptista
person.givenNameMARIA ANA
person.identifierhttps://scholar.google.pt/citations?user=ApQ9Bp4AAAAJ&hl=pt-PT
person.identifier.ciencia-idCF12-1EE3-F49B
person.identifier.orcid0000-0002-6381-703X
person.identifier.scopus-author-idhttps://www.scopus.com/authid/detail.uri?authorId=7102934075
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationa01dd185-70d9-4a8e-9c8c-1418e555ef00
relation.isAuthorOfPublication.latestForDiscoverya01dd185-70d9-4a8e-9c8c-1418e555ef00

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