An efficient two-level preconditioner based on lifting for FEM-BEM equations

Detalhes bibliográficos
Autor(a) principal: Pereira,Fabio Henrique
Data de Publicação: 2010
Outros Autores: Afonso,Marcio Matias, Vasconcelos,João Antônio de, Nabeta,Silvio Ikuyo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of Microwaves. Optoelectronics and Electromagnetic Applications
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742010000200002
Resumo: The system resulting from the coupled Finite Element Method and Boundary Element Method formulations inherits all characteristics of both finite element and boundary element equation system, i. e., the system is partially sparse and symmetric and partially full and nonsymmetric. Consequently, to solve the resulting coupled equation system is not a trivial task. This paper proposes a new efficient lifting-based two level preconditioner for the coupled global system. The proposed approach is applied to solve the coupled systems resulting from the electromagnetic scattering problem and its performance is evaluated based on the number of iterations and the computational time. Traditional methods based on incomplete and complete LU decompositions are used for comparison.
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spelling An efficient two-level preconditioner based on lifting for FEM-BEM equationsFEM-BEM EquationsLifting TechniquePreconditionerThe system resulting from the coupled Finite Element Method and Boundary Element Method formulations inherits all characteristics of both finite element and boundary element equation system, i. e., the system is partially sparse and symmetric and partially full and nonsymmetric. Consequently, to solve the resulting coupled equation system is not a trivial task. This paper proposes a new efficient lifting-based two level preconditioner for the coupled global system. The proposed approach is applied to solve the coupled systems resulting from the electromagnetic scattering problem and its performance is evaluated based on the number of iterations and the computational time. Traditional methods based on incomplete and complete LU decompositions are used for comparison.Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo2010-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742010000200002Journal of Microwaves, Optoelectronics and Electromagnetic Applications v.9 n.2 2010reponame:Journal of Microwaves. Optoelectronics and Electromagnetic Applicationsinstname:Sociedade Brasileira de Microondas e Optoeletrônica (SBMO)instacron:SBMO10.1590/S2179-10742010000200002info:eu-repo/semantics/openAccessPereira,Fabio HenriqueAfonso,Marcio MatiasVasconcelos,João Antônio deNabeta,Silvio Ikuyoeng2011-11-08T00:00:00Zoai:scielo:S2179-10742010000200002Revistahttp://www.jmoe.org/index.php/jmoe/indexONGhttps://old.scielo.br/oai/scielo-oai.php||editor_jmoe@sbmo.org.br2179-10742179-1074opendoar:2011-11-08T00:00Journal of Microwaves. Optoelectronics and Electromagnetic Applications - Sociedade Brasileira de Microondas e Optoeletrônica (SBMO)false
dc.title.none.fl_str_mv An efficient two-level preconditioner based on lifting for FEM-BEM equations
title An efficient two-level preconditioner based on lifting for FEM-BEM equations
spellingShingle An efficient two-level preconditioner based on lifting for FEM-BEM equations
Pereira,Fabio Henrique
FEM-BEM Equations
Lifting Technique
Preconditioner
title_short An efficient two-level preconditioner based on lifting for FEM-BEM equations
title_full An efficient two-level preconditioner based on lifting for FEM-BEM equations
title_fullStr An efficient two-level preconditioner based on lifting for FEM-BEM equations
title_full_unstemmed An efficient two-level preconditioner based on lifting for FEM-BEM equations
title_sort An efficient two-level preconditioner based on lifting for FEM-BEM equations
author Pereira,Fabio Henrique
author_facet Pereira,Fabio Henrique
Afonso,Marcio Matias
Vasconcelos,João Antônio de
Nabeta,Silvio Ikuyo
author_role author
author2 Afonso,Marcio Matias
Vasconcelos,João Antônio de
Nabeta,Silvio Ikuyo
author2_role author
author
author
dc.contributor.author.fl_str_mv Pereira,Fabio Henrique
Afonso,Marcio Matias
Vasconcelos,João Antônio de
Nabeta,Silvio Ikuyo
dc.subject.por.fl_str_mv FEM-BEM Equations
Lifting Technique
Preconditioner
topic FEM-BEM Equations
Lifting Technique
Preconditioner
description The system resulting from the coupled Finite Element Method and Boundary Element Method formulations inherits all characteristics of both finite element and boundary element equation system, i. e., the system is partially sparse and symmetric and partially full and nonsymmetric. Consequently, to solve the resulting coupled equation system is not a trivial task. This paper proposes a new efficient lifting-based two level preconditioner for the coupled global system. The proposed approach is applied to solve the coupled systems resulting from the electromagnetic scattering problem and its performance is evaluated based on the number of iterations and the computational time. Traditional methods based on incomplete and complete LU decompositions are used for comparison.
publishDate 2010
dc.date.none.fl_str_mv 2010-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742010000200002
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742010000200002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S2179-10742010000200002
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo
publisher.none.fl_str_mv Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo
dc.source.none.fl_str_mv Journal of Microwaves, Optoelectronics and Electromagnetic Applications v.9 n.2 2010
reponame:Journal of Microwaves. Optoelectronics and Electromagnetic Applications
instname:Sociedade Brasileira de Microondas e Optoeletrônica (SBMO)
instacron:SBMO
instname_str Sociedade Brasileira de Microondas e Optoeletrônica (SBMO)
instacron_str SBMO
institution SBMO
reponame_str Journal of Microwaves. Optoelectronics and Electromagnetic Applications
collection Journal of Microwaves. Optoelectronics and Electromagnetic Applications
repository.name.fl_str_mv Journal of Microwaves. Optoelectronics and Electromagnetic Applications - Sociedade Brasileira de Microondas e Optoeletrônica (SBMO)
repository.mail.fl_str_mv ||editor_jmoe@sbmo.org.br
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