The modified spectral deterministic method applied to fixed–source discrete ordinates problems in X, Y–geometry

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dc.contributor.authorCURBELO, J.P.pt_BR
dc.contributor.authorLIBOTTE, R.B.pt_BR
dc.contributor.authorOLIVA, A.M.pt_BR
dc.contributor.authorBARROS, R.C.pt_BR
dc.contributor.authorALVES FILHO, H.pt_BR
dc.coverageNacionalpt_BR
dc.date.accessioned2021-03-24T13:09:05Z
dc.date.available2021-03-24T13:09:05Z
dc.date.issued2020pt_BR
dc.description.abstractA new approach for the application of the coarse–mesh Modified Spectral Deterministic method to numerically solve the two–dimensional neutron transport equation in the discrete ordinates (𝑺𝑵) formulation is presented in this work. The method is based on within node general solution of the conventional one–dimensional 𝑺𝑵 transverse integrated equations considering constant approximations for the transverse leakage terms and obtaining the 𝑺𝑵 spatial balance equations. The discretized equations are solved by using a modified Source Iteration scheme without additional approximations since the average angular fluxes are computed analytically in each iteration. The numerical algorithm of the method presented here is algebraically simpler than other spectral nodal methods in the literature for the type of problems we have considered. Numerical results to two typical model problems are presented to test the accuracy of the offered method.pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.description.sponsorshipIDCAPES: 001pt_BR
dc.format.extent1-14pt_BR
dc.identifier.citationCURBELO, J.P.; LIBOTTE, R.B.; OLIVA, A.M.; BARROS, R.C.; ALVES FILHO, H. The modified spectral deterministic method applied to fixed–source discrete ordinates problems in X, Y–geometry. <b>Brazilian Journal of Radiation Sciences</b>, v. 8, n. 3A, p. 1-14, 2020. DOI: <a href="https://dx.doi.org/10.15392/bjrs.v8i3A.1268">10.15392/bjrs.v8i3A.1268</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/31946.
dc.identifier.doi10.15392/bjrs.v8i3A.1268pt_BR
dc.identifier.fasciculo3Apt_BR
dc.identifier.issn2319-0612pt_BR
dc.identifier.percentilfiSem Percentilpt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/31946
dc.identifier.vol8pt_BR
dc.relation.ispartofBrazilian Journal of Radiation Sciencespt_BR
dc.rightsopenAccesspt_BR
dc.sourceMeeting on Nuclear Reactor Physics and Thermal hydraulics, 21st; Meeting on Nuclear Industry, 6th, October 21-25, 2019, Santos, SPpt_BR
dc.subjectalgorithms
dc.subjectdeterministic estimation
dc.subjectdiscrete ordinate method
dc.subjectfinite difference method
dc.subjectgreen function
dc.subjectneutron leakage
dc.subjectneutron transport theory
dc.subjectnodal expansion method
dc.titleThe modified spectral deterministic method applied to fixed–source discrete ordinates problems in X, Y–geometrypt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.date.recebimento21-03
ipen.identifier.fiSem F.I.pt_BR
ipen.identifier.ipendoc27717pt_BR
ipen.type.genreArtigo
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