CFD analysis of blockage length on a partially blocked fuel rod

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dc.contributor.authorSCURO, N.L.
dc.contributor.authorANGELO, G.
dc.contributor.authorANGELO, E.
dc.contributor.authorANDRADE, D.A.
dc.coverageInternacionalpt_BR
dc.creator.evento60 YEARS OF IEA-R1: INTERNATIONAL WORKSHOP ON UTILIZATION OF RESEARCH REACTORSpt_BR
dc.date.accessioned2018-03-19T13:13:34Z
dc.date.available2018-03-19T13:13:34Z
dc.date.eventoNovember 28 - December 01, 2017pt_BR
dc.description.abstractIn LOCA accidents, fuel rods may balloon by the increasing of pressure difference between fuel rod and core vessel. With the balloon effect, the swelling can partially block the flow channel, affecting the coolability during reflood phase. In order to analyze the influence of blockage length after LOCA events, many numerical simulations using Ansys-CFX code have been done in steady state condition, characterizing the final phase of reflood. Peaks of temperature are observed in the middle of the fuel rod, followed by a temperature drop. This effect is justified by the increasing of heat transfer coefficient, originated from the high turbulence effects. Therefore, this paper considers a radial blockage of 90%, varying just the blockage length. This study observed that, for the same boundary conditions, the longer the blockage length originated after LOCA events, the higher are the central temperatures in the fuel rod.pt_BR
dc.format.extent60-61pt_BR
dc.identifier.citationSCURO, N.L.; ANGELO, G.; ANGELO, E.; ANDRADE, D.A. CFD analysis of blockage length on a partially blocked fuel rod. In: 60 YEARS OF IEA-R1: INTERNATIONAL WORKSHOP ON UTILIZATION OF RESEARCH REACTORS, November 28 - December 01, 2017, São Paulo, SP. <b>Abstract...</b> São Paulo, SP: Instituto de Pesquisas Energéticas e Nucleares, 2017. p. 60-61. Disponível em: http://repositorio.ipen.br/handle/123456789/28759.
dc.identifier.orcidhttps://orcid.org/0000-0002-6689-3011
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28759
dc.localSão Paulo, SPpt_BR
dc.local.eventoSão Paulo, SPpt_BR
dc.publisherInstituto de Pesquisas Energéticas e Nuclearespt_BR
dc.rightsopenAccesspt_BR
dc.subjectboundary conditions
dc.subjectcomputerized simulation
dc.subjectflow blockage
dc.subjectfluid mechanics
dc.subjectfuel rods
dc.subjectheat transfer
dc.subjectloss of coolant
dc.subjectnumerical analysis
dc.subjectsteady-state conditions
dc.subjectturbulence
dc.titleCFD analysis of blockage length on a partially blocked fuel rodpt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorGABRIEL ANGELO
ipen.autorDELVONEI ALVES DE ANDRADE
ipen.autorNIKOLAS LYMBERIS SCURO
ipen.codigoautor8770
ipen.codigoautor1258
ipen.codigoautor14552
ipen.contributor.ipenauthorGABRIEL ANGELO
ipen.contributor.ipenauthorDELVONEI ALVES DE ANDRADE
ipen.contributor.ipenauthorNIKOLAS LYMBERIS SCURO
ipen.date.recebimento18-03pt_BR
ipen.event.datapadronizada2017pt_BR
ipen.identifier.ipendoc24581pt_BR
ipen.notas.internasAbstractpt_BR
ipen.type.genreResumo
relation.isAuthorOfPublication4f3518a7-495e-43cd-9167-91f53d064b30
relation.isAuthorOfPublication0eeb4436-68e5-4573-a603-35f5fc912178
relation.isAuthorOfPublication21cc9120-e6dd-4e0d-8a42-6fe0737cada6
relation.isAuthorOfPublication.latestForDiscovery21cc9120-e6dd-4e0d-8a42-6fe0737cada6
sigepi.autor.atividadeSCURO, N.L.:14552:-1:Npt_BR
sigepi.autor.atividadeANGELO, G.:8770:-1:Npt_BR
sigepi.autor.atividadeANDRADE, D.A.:1258:420:Npt_BR
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