Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models

Detalhes bibliográficos
Autor(a) principal: Popiolek, Tales Luiz
Data de Publicação: 2006
Outros Autores: Awruch, Armando Miguel, Teixeira, Paulo Roberto de Freitas
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da FURG (RI FURG)
Texto Completo: http://repositorio.furg.br/handle/1/5049
Resumo: Numerical simulations of laminar and turbulent flows in a lid driven cavity and over a backward-facing step are presented in this work. The main objectives of this research are to know more about the structure of turbulent flows, to identify their three-dimensional characteristic and to study physical effects due to heat transfer. The filtered Navier–Stokes equations are used to simulate large scales, however they are supplemented by subgrid-scale (SGS) models to simulate the energy transfer from large scales toward subgridscales, where this energy will be dissipated by molecular viscosity. Two SGS models are applied: the classical Smagorinsky s model and the Dynamic model for large eddy simulation (LES). Both models are implemented in a three-dimensional finite element code using linear tetrahedral elements. Qualitative and quantitative aspects of two and three-dimensional flows in a lid-driven cavity and over a backward-facing step, using LES, are analyzed comparing numerical and experimental results obtained by other authors.
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spelling Finite element analysis of laminar and turbulent flows using LES and subgrid-scale modelsLaminar and turbulent flowsLarge eddy simulationFinite elementsSubgrid-scale modelNumerical simulations of laminar and turbulent flows in a lid driven cavity and over a backward-facing step are presented in this work. The main objectives of this research are to know more about the structure of turbulent flows, to identify their three-dimensional characteristic and to study physical effects due to heat transfer. The filtered Navier–Stokes equations are used to simulate large scales, however they are supplemented by subgrid-scale (SGS) models to simulate the energy transfer from large scales toward subgridscales, where this energy will be dissipated by molecular viscosity. Two SGS models are applied: the classical Smagorinsky s model and the Dynamic model for large eddy simulation (LES). Both models are implemented in a three-dimensional finite element code using linear tetrahedral elements. Qualitative and quantitative aspects of two and three-dimensional flows in a lid-driven cavity and over a backward-facing step, using LES, are analyzed comparing numerical and experimental results obtained by other authors.2015-06-19T18:01:28Z2015-06-19T18:01:28Z2006info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPOPIOLEK, Tales Luiz; AWRUCH, Armando Miguel; TEIXEIRA, Paulo Roberto de Freitas. Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models. Applied Mathematical Modelling, v. 30, n. 2, p.177-199, 2006. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0307904X05000648>. Acesso em: 18 jun. 2015.0307-904Xhttp://repositorio.furg.br/handle/1/504910.1016/j.apm.2005.03.019engPopiolek, Tales LuizAwruch, Armando MiguelTeixeira, Paulo Roberto de Freitasinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2015-06-19T18:01:28Zoai:repositorio.furg.br:1/5049Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2015-06-19T18:01:28Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false
dc.title.none.fl_str_mv Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models
title Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models
spellingShingle Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models
Popiolek, Tales Luiz
Laminar and turbulent flows
Large eddy simulation
Finite elements
Subgrid-scale model
title_short Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models
title_full Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models
title_fullStr Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models
title_full_unstemmed Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models
title_sort Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models
author Popiolek, Tales Luiz
author_facet Popiolek, Tales Luiz
Awruch, Armando Miguel
Teixeira, Paulo Roberto de Freitas
author_role author
author2 Awruch, Armando Miguel
Teixeira, Paulo Roberto de Freitas
author2_role author
author
dc.contributor.author.fl_str_mv Popiolek, Tales Luiz
Awruch, Armando Miguel
Teixeira, Paulo Roberto de Freitas
dc.subject.por.fl_str_mv Laminar and turbulent flows
Large eddy simulation
Finite elements
Subgrid-scale model
topic Laminar and turbulent flows
Large eddy simulation
Finite elements
Subgrid-scale model
description Numerical simulations of laminar and turbulent flows in a lid driven cavity and over a backward-facing step are presented in this work. The main objectives of this research are to know more about the structure of turbulent flows, to identify their three-dimensional characteristic and to study physical effects due to heat transfer. The filtered Navier–Stokes equations are used to simulate large scales, however they are supplemented by subgrid-scale (SGS) models to simulate the energy transfer from large scales toward subgridscales, where this energy will be dissipated by molecular viscosity. Two SGS models are applied: the classical Smagorinsky s model and the Dynamic model for large eddy simulation (LES). Both models are implemented in a three-dimensional finite element code using linear tetrahedral elements. Qualitative and quantitative aspects of two and three-dimensional flows in a lid-driven cavity and over a backward-facing step, using LES, are analyzed comparing numerical and experimental results obtained by other authors.
publishDate 2006
dc.date.none.fl_str_mv 2006
2015-06-19T18:01:28Z
2015-06-19T18:01:28Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv POPIOLEK, Tales Luiz; AWRUCH, Armando Miguel; TEIXEIRA, Paulo Roberto de Freitas. Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models. Applied Mathematical Modelling, v. 30, n. 2, p.177-199, 2006. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0307904X05000648>. Acesso em: 18 jun. 2015.
0307-904X
http://repositorio.furg.br/handle/1/5049
10.1016/j.apm.2005.03.019
identifier_str_mv POPIOLEK, Tales Luiz; AWRUCH, Armando Miguel; TEIXEIRA, Paulo Roberto de Freitas. Finite element analysis of laminar and turbulent flows using LES and subgrid-scale models. Applied Mathematical Modelling, v. 30, n. 2, p.177-199, 2006. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0307904X05000648>. Acesso em: 18 jun. 2015.
0307-904X
10.1016/j.apm.2005.03.019
url http://repositorio.furg.br/handle/1/5049
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da FURG (RI FURG)
instname:Universidade Federal do Rio Grande (FURG)
instacron:FURG
instname_str Universidade Federal do Rio Grande (FURG)
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institution FURG
reponame_str Repositório Institucional da FURG (RI FURG)
collection Repositório Institucional da FURG (RI FURG)
repository.name.fl_str_mv Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)
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