The spectral deterministic method applied to n??utron fixed-source discrete ordinates problems in X, Y-geometry for multigroup calculations

Detalhes bibliográficos
Autor(a) principal: OLIVA, AMAURY M.
Data de Publicação: 2020
Outros Autores: ALVES FILHO, HERMES, BARROS, RICARDO C., CURBELO, JESUS P., INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
Tipo de documento: Artigo de conferência
Título da fonte: Repositório Institucional do IPEN
Texto Completo: http://repositorio.ipen.br/handle/123456789/30811
Resumo: A new approach for the development of a coarse-mesh numerical spectral nodal method is presented in this paper. This method, referred to as the Spectral Deterministic Method { Constant Nodal (SDM{CN), is based on a spectral analysis of the multigroup X,Y-Geometry, linearly anisotropic scattering neutron transport equations in discrete ordinates ( SN)formulation for xed-source calculations in non-multiplying media. In this paper we present typical model problems to illustrate the accuracy and the e ciency for coarse-mesh energy multigroup SN calculations of the SDM-CN method. The numerical results obtained are compared with the traditional ne-mesh Diamond Di erence (DD) method and the results obtained by DOT{II and TWOTRAN codes. The numerical results are also compared with the spectral nodal method, spectral Green's function (SGF).
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spelling 2020-02-20T12:52:37Z2020-02-20T12:52:37ZOctober 21-25, 2019http://repositorio.ipen.br/handle/123456789/30811A new approach for the development of a coarse-mesh numerical spectral nodal method is presented in this paper. This method, referred to as the Spectral Deterministic Method { Constant Nodal (SDM{CN), is based on a spectral analysis of the multigroup X,Y-Geometry, linearly anisotropic scattering neutron transport equations in discrete ordinates ( SN)formulation for xed-source calculations in non-multiplying media. In this paper we present typical model problems to illustrate the accuracy and the e ciency for coarse-mesh energy multigroup SN calculations of the SDM-CN method. The numerical results obtained are compared with the traditional ne-mesh Diamond Di erence (DD) method and the results obtained by DOT{II and TWOTRAN codes. The numerical results are also compared with the spectral nodal method, spectral Green's function (SGF).Submitted by Celia Satomi Uehara (celia.u-topservice@ipen.br) on 2020-02-20T12:52:37Z No. of bitstreams: 1 26350.pdf: 428628 bytes, checksum: a2aa00cc637a511f16987920fc0bfc2e (MD5)Made available in DSpace on 2020-02-20T12:52:37Z (GMT). No. of bitstreams: 1 26350.pdf: 428628 bytes, checksum: a2aa00cc637a511f16987920fc0bfc2e (MD5)4702-4716Associa????o Brasileira de Energia Nuclearboltzmann equationcomparative evaluationscomparative evaluationscomputerized simulationd codesdiscrete ordinate methodfinite difference methodmultigroup theoryneutron transportnodal expansion methodscatteringt codesThe spectral deterministic method applied to n??utron fixed-source discrete ordinates problems in X, Y-geometry for multigroup calculationsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectINACIRio de JaneiroSantos, SPOLIVA, AMAURY M.ALVES FILHO, HERMESBARROS, RICARDO C.CURBELO, JESUS P.INTERNATIONAL NUCLEAR ATLANTIC CONFERENCEinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do IPENinstname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)instacron:IPEN263502019OLIVA, AMAURY M.20-02Proceedings15577OLIVA, AMAURY M.:15577:-1:SORIGINAL26350.pdf26350.pdfapplication/pdf428628http://repositorio.ipen.br/bitstream/123456789/30811/1/26350.pdfa2aa00cc637a511f16987920fc0bfc2eMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ipen.br/bitstream/123456789/30811/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/308112022-05-30 14:34:32.295oai:repositorio.ipen.br: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Repositório InstitucionalPUBhttp://repositorio.ipen.br/oai/requestbibl@ipen.bropendoar:45102022-05-30T14:34:32Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)false
dc.title.pt_BR.fl_str_mv The spectral deterministic method applied to n??utron fixed-source discrete ordinates problems in X, Y-geometry for multigroup calculations
title The spectral deterministic method applied to n??utron fixed-source discrete ordinates problems in X, Y-geometry for multigroup calculations
spellingShingle The spectral deterministic method applied to n??utron fixed-source discrete ordinates problems in X, Y-geometry for multigroup calculations
OLIVA, AMAURY M.
boltzmann equation
comparative evaluations
comparative evaluations
computerized simulation
d codes
discrete ordinate method
finite difference method
multigroup theory
neutron transport
nodal expansion method
scattering
t codes
title_short The spectral deterministic method applied to n??utron fixed-source discrete ordinates problems in X, Y-geometry for multigroup calculations
title_full The spectral deterministic method applied to n??utron fixed-source discrete ordinates problems in X, Y-geometry for multigroup calculations
title_fullStr The spectral deterministic method applied to n??utron fixed-source discrete ordinates problems in X, Y-geometry for multigroup calculations
title_full_unstemmed The spectral deterministic method applied to n??utron fixed-source discrete ordinates problems in X, Y-geometry for multigroup calculations
title_sort The spectral deterministic method applied to n??utron fixed-source discrete ordinates problems in X, Y-geometry for multigroup calculations
author OLIVA, AMAURY M.
author_facet OLIVA, AMAURY M.
ALVES FILHO, HERMES
BARROS, RICARDO C.
CURBELO, JESUS P.
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
author_role author
author2 ALVES FILHO, HERMES
BARROS, RICARDO C.
CURBELO, JESUS P.
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
author2_role author
author
author
author
dc.contributor.author.fl_str_mv OLIVA, AMAURY M.
ALVES FILHO, HERMES
BARROS, RICARDO C.
CURBELO, JESUS P.
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
dc.subject.por.fl_str_mv boltzmann equation
comparative evaluations
comparative evaluations
computerized simulation
d codes
discrete ordinate method
finite difference method
multigroup theory
neutron transport
nodal expansion method
scattering
t codes
topic boltzmann equation
comparative evaluations
comparative evaluations
computerized simulation
d codes
discrete ordinate method
finite difference method
multigroup theory
neutron transport
nodal expansion method
scattering
t codes
description A new approach for the development of a coarse-mesh numerical spectral nodal method is presented in this paper. This method, referred to as the Spectral Deterministic Method { Constant Nodal (SDM{CN), is based on a spectral analysis of the multigroup X,Y-Geometry, linearly anisotropic scattering neutron transport equations in discrete ordinates ( SN)formulation for xed-source calculations in non-multiplying media. In this paper we present typical model problems to illustrate the accuracy and the e ciency for coarse-mesh energy multigroup SN calculations of the SDM-CN method. The numerical results obtained are compared with the traditional ne-mesh Diamond Di erence (DD) method and the results obtained by DOT{II and TWOTRAN codes. The numerical results are also compared with the spectral nodal method, spectral Green's function (SGF).
publishDate 2020
dc.date.evento.pt_BR.fl_str_mv October 21-25, 2019
dc.date.accessioned.fl_str_mv 2020-02-20T12:52:37Z
dc.date.available.fl_str_mv 2020-02-20T12:52:37Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ipen.br/handle/123456789/30811
url http://repositorio.ipen.br/handle/123456789/30811
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 4702-4716
dc.coverage.pt_BR.fl_str_mv I
dc.publisher.none.fl_str_mv Associa????o Brasileira de Energia Nuclear
publisher.none.fl_str_mv Associa????o Brasileira de Energia Nuclear
dc.source.none.fl_str_mv reponame:Repositório Institucional do IPEN
instname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)
instacron:IPEN
instname_str Instituto de Pesquisas Energéticas e Nucleares (IPEN)
instacron_str IPEN
institution IPEN
reponame_str Repositório Institucional do IPEN
collection Repositório Institucional do IPEN
bitstream.url.fl_str_mv http://repositorio.ipen.br/bitstream/123456789/30811/1/26350.pdf
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