Numerical methodology for fluid-structure interaction analysis of nuclear fuel plates under axial flow conditions

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dc.contributor.authorMANTECON, JAVIER G.
dc.contributor.authorMATTAR NETO, MIGUEL
dc.coverageInternacionalpt_BR
dc.date.accessioned2018-07-17T13:51:52Z
dc.date.available2018-07-17T13:51:52Z
dc.date.issued2018pt_BR
dc.description.abstractShell-type fuel elements are widely used in nuclear research reactors. The nuclear fuel is contained in parallel shells, flat or curved, that are separated by narrow channels through which the fluid flows to remove the heat generated by fission reactions. A major problem of this fuel assembly design is the hydraulic instability of the shells caused by the high flow velocities. The objective of the study presented here is the development of a fluid-structure interaction methodology to investigate numerically the onset of hydroelastic instability of flat-shell-type fuel elements, also known as plate-type fuel assemblies, under axial flow conditions. The system analyzed consists of two nuclear fuel plates bounded by three-equal coolant channels. It is developed using the commercial codes ANSYS CFX for modeling the fluid flow and ANSYS Mechanical to model the plates. The fluid-structure interaction methodology predicts a behavior consistent with other theoretical and experimental works. Particularly, the maximum deflection of the plates is detected at the leading edge and it is a linear function of the square of the fluid velocity up to the Miller’s theoretical value. For velocities above this value, a nonlinear relationship is observed. This relationship indicates that structural changes are taking place in the plates. Furthermore, for fluid velocities greater than the Miller’s velocity, an extra deflection peak is observed near the trailing edge of the plates. Thus, structural alterations also happen along the length of the flat-shells.pt_BR
dc.format.extent76-86pt_BR
dc.identifier.citationMANTECON, JAVIER G.; MATTAR NETO, MIGUEL. Numerical methodology for fluid-structure interaction analysis of nuclear fuel plates under axial flow conditions. <b>Nuclear Engineering and Design</b>, v. 333, p. 76-86, 2018. DOI: <a href="https://dx.doi.org/10.1016/j.nucengdes.2018.04.009">10.1016/j.nucengdes.2018.04.009</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/28966.
dc.identifier.doi10.1016/j.nucengdes.2018.04.009pt_BR
dc.identifier.issn0029-5493pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2295-1021
dc.identifier.percentilfi77.94en
dc.identifier.percentilfiCiteScore67.67
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28966
dc.identifier.vol333pt_BR
dc.relation.ispartofNuclear Engineering and Designpt_BR
dc.rightsopenAccesspt_BR
dc.subjectcritical velocity
dc.subjectresearch reactors
dc.subjectcomputer codes
dc.subjectnuclear fuels
dc.subjectfuel elements
dc.subjectfuel plates
dc.subjectinstability
dc.titleNumerical methodology for fluid-structure interaction analysis of nuclear fuel plates under axial flow conditionspt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorMIGUEL MATTAR NETO
ipen.autorJAVIER GONZALES MANTECON
ipen.codigoautor70
ipen.codigoautor14222
ipen.contributor.ipenauthorMIGUEL MATTAR NETO
ipen.contributor.ipenauthorJAVIER GONZALES MANTECON
ipen.date.recebimento18-07pt_BR
ipen.identifier.fi1.541pt_BR
ipen.identifier.fiCiteScore3.0
ipen.identifier.ipendoc24753pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi75.00 - 100.00
ipen.type.genreArtigo
relation.isAuthorOfPublicationf529c318-12eb-4cdc-b0ad-8fc1d9fee754
relation.isAuthorOfPublication26c32a1b-ab2b-411c-b2f7-8e2474177393
relation.isAuthorOfPublication.latestForDiscovery26c32a1b-ab2b-411c-b2f7-8e2474177393
sigepi.autor.atividadeMANTECON, JAVIER G.:14222:420:Spt_BR
sigepi.autor.atividadeMATTAR NETO, MIGUEL:70:420:Npt_BR
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