1. Identificação | |
Tipo de Referência | Artigo em Revista Científica (Journal Article) |
Site | mtc-m21c.sid.inpe.br |
Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
Identificador | 8JMKD3MGP3W34R/42HQJF8 |
Repositório | sid.inpe.br/mtc-m21c/2020/05.26.11.34 (acesso restrito) |
Última Atualização | 2020:05.26.11.34.42 (UTC) administrator |
Repositório de Metadados | sid.inpe.br/mtc-m21c/2020/05.26.11.34.42 |
Última Atualização dos Metadados | 2022:01.04.01.35.09 (UTC) administrator |
DOI | 10.1016/j.compfluid.2020.104583 |
ISSN | 0045-7930 |
Chave de Citação | DeiterdingDomiSchn:2020:CaStEu |
Título | Multiresolution analysis as a criterion for effective dynamic mesh adaptation: a case study for Euler equations in the SAMR framework AMROC |
Ano | 2020 |
Mês | June |
Data de Acesso | 13 maio 2024 |
Tipo de Trabalho | journal article |
Tipo Secundário | PRE PI |
Número de Arquivos | 1 |
Tamanho | 3761 KiB |
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2. Contextualização | |
Autor | 1 Deiterding, Ralf 2 Domingues, Margarete Oliveira 3 Schneider, Kai |
Identificador de Curriculo | 1 2 8JMKD3MGP5W/3C9JHQP |
Grupo | 1 2 LABAC-COCTE-INPE-MCTIC-GOV-BR |
Afiliação | 1 University of Southampton 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Aix-Marseille Université |
Endereço de e-Mail do Autor | 1 r.deiterding@soton.ac.uk 2 margarete.domingues@inpe.br 3 kai.schneider@univ-amu.fr |
Revista | Computers and Fluids |
Volume | 205 |
Páginas | e104583 |
Nota Secundária | A1_ENGENHARIAS_I A2_ENGENHARIAS_III A2_CIÊNCIA_DA_COMPUTAÇÃO B1_ENGENHARIAS_IV B2_MATERIAIS B3_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA B3_ASTRONOMIA_/_FÍSICA |
Histórico (UTC) | 2020-05-26 11:35:10 :: simone -> administrator :: 2020 2022-01-04 01:35:09 :: administrator -> simone :: 2020 |
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3. Conteúdo e estrutura | |
É a matriz ou uma cópia? | é a matriz |
Estágio do Conteúdo | concluido |
Transferível | 1 |
Tipo do Conteúdo | External Contribution |
Tipo de Versão | publisher |
Palavras-Chave | Block-structured parallel adaptive mesh refinement Adaptation criteria Multiresolution analysis Wavelets Compressible EULER equations AMROC |
Resumo | Dynamic mesh adaptation methods require suitable refinement indicators. In the absence of a comprehensive error estimation theory, adaptive mesh refinement (AMR) for nonlinear hyperbolic conservation laws, e.g. compressible Euler equations, in practice utilizes mainly heuristic smoothness indicators like combinations of scaled gradient criteria. As an alternative, we describe in detail an easy to implement and computationally inexpensive criterion built on a two-level wavelet transform that applies projection and prediction operators from multiresolution analysis. The core idea is the use of the amplitude of the wavelet coefficients as smoothness indicator, as it can be related to the local regularity of the solution. Implemented within the fully parallelized and structured adaptive mesh refinement (SAMR) software system AMROC (Adaptive Mesh Refinement in Object-oriented C++), the proposed criterion is tested and comprehensively compared to results obtained by applying the scaled gradient approach. A rigorous quantification technique in terms of numerical adaptation error versus used finite volume cells is developed and applied to study typical two- and three-dimensional problems from compressible gas dynamics. It is found that the proposed multiresolution approach is considerably more efficient and also identifies besides discontinuous shock and contact waves in particular smooth rarefaction waves and their interaction as well as small-scale disturbances much more reliably. Aside from pathological cases consisting solely of planar shock waves, the majority of realistic cases show reductions in the number of used finite volume cells between 20 to 40%, while the numerical error remains basically unaltered. |
Área | COMP |
Arranjo | urlib.net > Produção anterior à 2021 > LABAC > Multiresolution analysis as... |
Conteúdo da Pasta doc | acessar |
Conteúdo da Pasta source | não têm arquivos |
Conteúdo da Pasta agreement | |
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4. Condições de acesso e uso | |
Idioma | en |
Grupo de Usuários | self-uploading-INPE-MCTI-GOV-BR simone |
Visibilidade | shown |
Permissão de Leitura | deny from all and allow from 150.163 |
Permissão de Atualização | não transferida |
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5. Fontes relacionadas | |
Vinculação | Trabalho não Vinculado à Tese/Dissertação |
Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ESGTTP |
Divulgação | WEBSCI; PORTALCAPES. |
Acervo Hospedeiro | urlib.net/www/2017/11.22.19.04 |
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6. Notas | |
Campos Vazios | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject targetfile tertiarytype url |
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7. Controle da descrição | |
e-Mail (login) | simone |
atualizar | |
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