A numerical study on the aerodynamic performance of building cross-sections using corner modifications
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Latin American journal of solids and structures (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252018000700508 |
Resumo: | Abstract A numerical investigation is performed in this work in order to evaluate the aerodynamic performance of building cross-section configurations by using corner modifications. The CAARC tall building model is utilized here as reference geometry, which is reshaped considering chamfered and recessed corners. The numerical scheme adopted in this work is presented and simulations are carried-out to obtain the wind loads on the building structures by means of aerodynamic coefficients as well as the flow field conditions near the model’s location. The explicit two-step Taylor-Galerkin scheme is employed in the context of the finite element method, where eight-node hexahedral finite elements with one-point quadrature are used for spatial discretization. Turbulence is described using the LES methodology, with a dynamic sub-grid scale model. Predictions obtained here are compared with experimental and numerical investigations performed previously. Results show that the use of corner modifications can reduce significantly the aerodynamic forces on the building structures, improve flow conditions near the building locations and increase the Strouhal number, which may have an important influence on aeroelastic effects. |
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Latin American journal of solids and structures (Online) |
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A numerical study on the aerodynamic performance of building cross-sections using corner modificationsWind Engineering (WE)Computational Fluid Dynamics (CFD)Finite Element Method (FEM)Large Eddy Simulation (LES)Abstract A numerical investigation is performed in this work in order to evaluate the aerodynamic performance of building cross-section configurations by using corner modifications. The CAARC tall building model is utilized here as reference geometry, which is reshaped considering chamfered and recessed corners. The numerical scheme adopted in this work is presented and simulations are carried-out to obtain the wind loads on the building structures by means of aerodynamic coefficients as well as the flow field conditions near the model’s location. The explicit two-step Taylor-Galerkin scheme is employed in the context of the finite element method, where eight-node hexahedral finite elements with one-point quadrature are used for spatial discretization. Turbulence is described using the LES methodology, with a dynamic sub-grid scale model. Predictions obtained here are compared with experimental and numerical investigations performed previously. Results show that the use of corner modifications can reduce significantly the aerodynamic forces on the building structures, improve flow conditions near the building locations and increase the Strouhal number, which may have an important influence on aeroelastic effects.Associação Brasileira de Ciências Mecânicas2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252018000700508Latin American Journal of Solids and Structures v.15 n.7 2018reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78254871info:eu-repo/semantics/openAccessAlminhana,Guilherme WienandtsBraun,Alexandre LuisLoredo-Souza,Acir Mércioeng2018-07-25T00:00:00Zoai:scielo:S1679-78252018000700508Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2018-07-25T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
A numerical study on the aerodynamic performance of building cross-sections using corner modifications |
title |
A numerical study on the aerodynamic performance of building cross-sections using corner modifications |
spellingShingle |
A numerical study on the aerodynamic performance of building cross-sections using corner modifications Alminhana,Guilherme Wienandts Wind Engineering (WE) Computational Fluid Dynamics (CFD) Finite Element Method (FEM) Large Eddy Simulation (LES) |
title_short |
A numerical study on the aerodynamic performance of building cross-sections using corner modifications |
title_full |
A numerical study on the aerodynamic performance of building cross-sections using corner modifications |
title_fullStr |
A numerical study on the aerodynamic performance of building cross-sections using corner modifications |
title_full_unstemmed |
A numerical study on the aerodynamic performance of building cross-sections using corner modifications |
title_sort |
A numerical study on the aerodynamic performance of building cross-sections using corner modifications |
author |
Alminhana,Guilherme Wienandts |
author_facet |
Alminhana,Guilherme Wienandts Braun,Alexandre Luis Loredo-Souza,Acir Mércio |
author_role |
author |
author2 |
Braun,Alexandre Luis Loredo-Souza,Acir Mércio |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Alminhana,Guilherme Wienandts Braun,Alexandre Luis Loredo-Souza,Acir Mércio |
dc.subject.por.fl_str_mv |
Wind Engineering (WE) Computational Fluid Dynamics (CFD) Finite Element Method (FEM) Large Eddy Simulation (LES) |
topic |
Wind Engineering (WE) Computational Fluid Dynamics (CFD) Finite Element Method (FEM) Large Eddy Simulation (LES) |
description |
Abstract A numerical investigation is performed in this work in order to evaluate the aerodynamic performance of building cross-section configurations by using corner modifications. The CAARC tall building model is utilized here as reference geometry, which is reshaped considering chamfered and recessed corners. The numerical scheme adopted in this work is presented and simulations are carried-out to obtain the wind loads on the building structures by means of aerodynamic coefficients as well as the flow field conditions near the model’s location. The explicit two-step Taylor-Galerkin scheme is employed in the context of the finite element method, where eight-node hexahedral finite elements with one-point quadrature are used for spatial discretization. Turbulence is described using the LES methodology, with a dynamic sub-grid scale model. Predictions obtained here are compared with experimental and numerical investigations performed previously. Results show that the use of corner modifications can reduce significantly the aerodynamic forces on the building structures, improve flow conditions near the building locations and increase the Strouhal number, which may have an important influence on aeroelastic effects. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 |
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=S1679-78252018000700508 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252018000700508 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78254871 |
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 |
Associação Brasileira de Ciências Mecânicas |
publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
dc.source.none.fl_str_mv |
Latin American Journal of Solids and Structures v.15 n.7 2018 reponame:Latin American journal of solids and structures (Online) instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) instacron:ABCM |
instname_str |
Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
instacron_str |
ABCM |
institution |
ABCM |
reponame_str |
Latin American journal of solids and structures (Online) |
collection |
Latin American journal of solids and structures (Online) |
repository.name.fl_str_mv |
Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
repository.mail.fl_str_mv |
abcm@abcm.org.br||maralves@usp.br |
_version_ |
1754302889628532736 |