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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21c.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34R/42HQJF8
Repositóriosid.inpe.br/mtc-m21c/2020/05.26.11.34   (acesso restrito)
Última Atualização2020:05.26.11.34.42 (UTC) administrator
Repositório de Metadadossid.inpe.br/mtc-m21c/2020/05.26.11.34.42
Última Atualização dos Metadados2022:01.04.01.35.09 (UTC) administrator
DOI10.1016/j.compfluid.2020.104583
ISSN0045-7930
Chave de CitaçãoDeiterdingDomiSchn:2020:CaStEu
TítuloMultiresolution analysis as a criterion for effective dynamic mesh adaptation: a case study for Euler equations in the SAMR framework AMROC
Ano2020
MêsJune
Data de Acesso12 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho3761 KiB
2. Contextualização
Autor1 Deiterding, Ralf
2 Domingues, Margarete Oliveira
3 Schneider, Kai
Identificador de Curriculo1
2 8JMKD3MGP5W/3C9JHQP
Grupo1
2 LABAC-COCTE-INPE-MCTIC-GOV-BR
Afiliação1 University of Southampton
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Aix-Marseille Université
Endereço de e-Mail do Autor1 r.deiterding@soton.ac.uk
2 margarete.domingues@inpe.br
3 kai.schneider@univ-amu.fr
RevistaComputers and Fluids
Volume205
Páginase104583
Nota SecundáriaA1_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
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-ChaveBlock-structured parallel adaptive mesh refinement
Adaptation criteria
Multiresolution analysis
Wavelets
Compressible EULER equations
AMROC
ResumoDynamic 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.
ÁreaCOMP
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4. Condições de acesso e uso
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Grupo de Usuáriosself-uploading-INPE-MCTI-GOV-BR
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5. Fontes relacionadas
VinculaçãoTrabalho não Vinculado à Tese/Dissertação
Unidades Imediatamente Superiores8JMKD3MGPCW/3ESGTTP
DivulgaçãoWEBSCI; PORTALCAPES.
Acervo Hospedeirourlib.net/www/2017/11.22.19.04
6. Notas
Campos Vaziosalternatejournal 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
7. Controle da descrição
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