Modified operator analysis on convection-diffusion problems

Detalhes bibliográficos
Autor(a) principal: Sampaio, Paulo Augusto Berquó de
Data de Publicação: 1988
Outros Autores: Instituto de Engenharia Nuclear
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional do IEN
Texto Completo: http://carpedien.ien.gov.br:8080/handle/ien/2675
Resumo: An exponential function defined along the stremlines is used to modify the linear convection-diffusion differential operator. As the modified operator is self-adjoint the Galerkin method is suited for the finite-element discretization. Apllications of the modified operator concept to one and two-dimensional steady-state problems are presented and analysed.
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spelling Sampaio, Paulo Augusto Berquó deInstituto de Engenharia Nuclear2018-08-29T14:00:27Z2018-08-29T14:00:27Z1988-12http://carpedien.ien.gov.br:8080/handle/ien/2675Submitted by Marcele Costal de Castro (costalcastro@gmail.com) on 2018-08-29T14:00:27Z No. of bitstreams: 0Made available in DSpace on 2018-08-29T14:00:27Z (GMT). No. of bitstreams: 0 Previous issue date: 1988-12An exponential function defined along the stremlines is used to modify the linear convection-diffusion differential operator. As the modified operator is self-adjoint the Galerkin method is suited for the finite-element discretization. Apllications of the modified operator concept to one and two-dimensional steady-state problems are presented and analysed.engInstituto de Engenharia NuclearIENBrasilENCIT 1988Finite element methodMathematical operatorsGalerkin-Petrov metehodConvectionModified operator analysis on convection-diffusion problemsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectENCIT 1988info:eu-repo/semantics/openAccessreponame:Repositório Institucional do IENinstname:Instituto de Engenharia Nuclearinstacron:IENLICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://carpedien.ien.gov.br:8080/xmlui/bitstream/ien/2675/1/license.txt8a4605be74aa9ea9d79846c1fba20a33MD51ien/2675oai:carpedien.ien.gov.br:ien/26752018-08-29 11:00:27.75Dspace IENlsales@ien.gov.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
dc.title.pt_BR.fl_str_mv Modified operator analysis on convection-diffusion problems
title Modified operator analysis on convection-diffusion problems
spellingShingle Modified operator analysis on convection-diffusion problems
Sampaio, Paulo Augusto Berquó de
ENCIT 1988
Finite element method
Mathematical operators
Galerkin-Petrov metehod
Convection
title_short Modified operator analysis on convection-diffusion problems
title_full Modified operator analysis on convection-diffusion problems
title_fullStr Modified operator analysis on convection-diffusion problems
title_full_unstemmed Modified operator analysis on convection-diffusion problems
title_sort Modified operator analysis on convection-diffusion problems
author Sampaio, Paulo Augusto Berquó de
author_facet Sampaio, Paulo Augusto Berquó de
Instituto de Engenharia Nuclear
author_role author
author2 Instituto de Engenharia Nuclear
author2_role author
dc.contributor.author.fl_str_mv Sampaio, Paulo Augusto Berquó de
Instituto de Engenharia Nuclear
dc.subject.por.fl_str_mv ENCIT 1988
Finite element method
Mathematical operators
Galerkin-Petrov metehod
Convection
topic ENCIT 1988
Finite element method
Mathematical operators
Galerkin-Petrov metehod
Convection
dc.description.abstract.por.fl_txt_mv An exponential function defined along the stremlines is used to modify the linear convection-diffusion differential operator. As the modified operator is self-adjoint the Galerkin method is suited for the finite-element discretization. Apllications of the modified operator concept to one and two-dimensional steady-state problems are presented and analysed.
description An exponential function defined along the stremlines is used to modify the linear convection-diffusion differential operator. As the modified operator is self-adjoint the Galerkin method is suited for the finite-element discretization. Apllications of the modified operator concept to one and two-dimensional steady-state problems are presented and analysed.
publishDate 1988
dc.date.issued.fl_str_mv 1988-12
dc.date.accessioned.fl_str_mv 2018-08-29T14:00:27Z
dc.date.available.fl_str_mv 2018-08-29T14:00:27Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
status_str publishedVersion
format conferenceObject
dc.identifier.uri.fl_str_mv http://carpedien.ien.gov.br:8080/handle/ien/2675
url http://carpedien.ien.gov.br:8080/handle/ien/2675
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Instituto de Engenharia Nuclear
dc.publisher.initials.fl_str_mv IEN
dc.publisher.country.fl_str_mv Brasil
publisher.none.fl_str_mv Instituto de Engenharia Nuclear
dc.source.none.fl_str_mv reponame:Repositório Institucional do IEN
instname:Instituto de Engenharia Nuclear
instacron:IEN
reponame_str Repositório Institucional do IEN
collection Repositório Institucional do IEN
instname_str Instituto de Engenharia Nuclear
instacron_str IEN
institution IEN
bitstream.url.fl_str_mv http://carpedien.ien.gov.br:8080/xmlui/bitstream/ien/2675/1/license.txt
bitstream.checksum.fl_str_mv 8a4605be74aa9ea9d79846c1fba20a33
bitstream.checksumAlgorithm.fl_str_mv MD5
repository.name.fl_str_mv Dspace IEN
repository.mail.fl_str_mv lsales@ien.gov.br
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