NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINE
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Interdisciplinar de Pesquisa em Engenharia |
Texto Completo: | https://periodicos.unb.br/index.php/ripe/article/view/21258 |
Resumo: | In this paper, the 3D numerical analysis of the flow field in a single cylinder research engine with optical access, running cold flow, is presented. The simulations were carried out in the commercial software Star-CD with es-ICE module and the two different turbulence models: RNG-k-ε and k-w SST were compared with experimental data of the engine running at 1000 rpm in motored conditions. A grid independency study is presented using five grids varying from approximately 500,000 to 1,500,000 cells on piston bottom dead center. An optical window inside the engine cylinder was used to measure the velocity components along the crank angle with the PIV technique and a comparison was made with calculated velocity curves. Moreover, a qualitative analysis of the scalar flow field in the region of interest is presented. The results showed a better agreement with the RNG-k-ε and experimental mean velocity magnitude curve than k-ω-SST. However, the qualitative scalar velocity field of the k-ω model captured more details of the flow than the k-ε model. |
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Revista Interdisciplinar de Pesquisa em Engenharia |
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NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINETurbulenceInternal Combustion EngineStar-CD3D SimulationRANSIn this paper, the 3D numerical analysis of the flow field in a single cylinder research engine with optical access, running cold flow, is presented. The simulations were carried out in the commercial software Star-CD with es-ICE module and the two different turbulence models: RNG-k-ε and k-w SST were compared with experimental data of the engine running at 1000 rpm in motored conditions. A grid independency study is presented using five grids varying from approximately 500,000 to 1,500,000 cells on piston bottom dead center. An optical window inside the engine cylinder was used to measure the velocity components along the crank angle with the PIV technique and a comparison was made with calculated velocity curves. Moreover, a qualitative analysis of the scalar flow field in the region of interest is presented. The results showed a better agreement with the RNG-k-ε and experimental mean velocity magnitude curve than k-ω-SST. However, the qualitative scalar velocity field of the k-ω model captured more details of the flow than the k-ε model.Programa de Pós-Graduação em Integridade de Materiais da Engenharia2017-08-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.unb.br/index.php/ripe/article/view/2125810.26512/ripe.v2i5.21258Revista Interdisciplinar de Pesquisa em Engenharia; Vol. 2 No. 5 (2016): ADVANCES IN MODELLING AND SIMULATION OF WIND SYSTEMS AND ANALYSING AND DESIGN OF OFFSHORE SYSTEMS; 257-271Revista Interdisciplinar de Pesquisa em Engenharia; v. 2 n. 5 (2016): ADVANCES IN MODELLING AND SIMULATION OF WIND SYSTEMS AND ANALYSING AND DESIGN OF OFFSHORE SYSTEMS; 257-2712447-6102reponame:Revista Interdisciplinar de Pesquisa em Engenhariainstname:Universidade de Brasília (UnB)instacron:UNBenghttps://periodicos.unb.br/index.php/ripe/article/view/21258/19607Copyright (c) 2018 Revista Interdisciplinar de Pesquisa em Engenharia - RIPEinfo:eu-repo/semantics/openAccessBraga, Raphael MeirelesReis, Leonardo MayerFonseca, Leonardo GuimarãesHuebner, RudolfValle, Ramon Molina2019-06-07T17:55:54Zoai:ojs.pkp.sfu.ca:article/21258Revistahttps://periodicos.unb.br/index.php/ripePUBhttps://periodicos.unb.br/index.php/ripe/oaianflor@unb.br2447-61022447-6102opendoar:2019-06-07T17:55:54Revista Interdisciplinar de Pesquisa em Engenharia - Universidade de Brasília (UnB)false |
dc.title.none.fl_str_mv |
NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINE |
title |
NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINE |
spellingShingle |
NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINE Braga, Raphael Meireles Turbulence Internal Combustion Engine Star-CD 3D Simulation RANS |
title_short |
NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINE |
title_full |
NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINE |
title_fullStr |
NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINE |
title_full_unstemmed |
NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINE |
title_sort |
NUMERICAL ANALYSIS OF THE IN-CYLINDER FLOW FIELD AND COMPARISON WITH EXPERIMENTAL DATA IN A SINGLE CYLINDER RESEARCH ENGINE |
author |
Braga, Raphael Meireles |
author_facet |
Braga, Raphael Meireles Reis, Leonardo Mayer Fonseca, Leonardo Guimarães Huebner, Rudolf Valle, Ramon Molina |
author_role |
author |
author2 |
Reis, Leonardo Mayer Fonseca, Leonardo Guimarães Huebner, Rudolf Valle, Ramon Molina |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Braga, Raphael Meireles Reis, Leonardo Mayer Fonseca, Leonardo Guimarães Huebner, Rudolf Valle, Ramon Molina |
dc.subject.por.fl_str_mv |
Turbulence Internal Combustion Engine Star-CD 3D Simulation RANS |
topic |
Turbulence Internal Combustion Engine Star-CD 3D Simulation RANS |
description |
In this paper, the 3D numerical analysis of the flow field in a single cylinder research engine with optical access, running cold flow, is presented. The simulations were carried out in the commercial software Star-CD with es-ICE module and the two different turbulence models: RNG-k-ε and k-w SST were compared with experimental data of the engine running at 1000 rpm in motored conditions. A grid independency study is presented using five grids varying from approximately 500,000 to 1,500,000 cells on piston bottom dead center. An optical window inside the engine cylinder was used to measure the velocity components along the crank angle with the PIV technique and a comparison was made with calculated velocity curves. Moreover, a qualitative analysis of the scalar flow field in the region of interest is presented. The results showed a better agreement with the RNG-k-ε and experimental mean velocity magnitude curve than k-ω-SST. However, the qualitative scalar velocity field of the k-ω model captured more details of the flow than the k-ε model. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08-22 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.unb.br/index.php/ripe/article/view/21258 10.26512/ripe.v2i5.21258 |
url |
https://periodicos.unb.br/index.php/ripe/article/view/21258 |
identifier_str_mv |
10.26512/ripe.v2i5.21258 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.unb.br/index.php/ripe/article/view/21258/19607 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Revista Interdisciplinar de Pesquisa em Engenharia - RIPE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Revista Interdisciplinar de Pesquisa em Engenharia - RIPE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Programa de Pós-Graduação em Integridade de Materiais da Engenharia |
publisher.none.fl_str_mv |
Programa de Pós-Graduação em Integridade de Materiais da Engenharia |
dc.source.none.fl_str_mv |
Revista Interdisciplinar de Pesquisa em Engenharia; Vol. 2 No. 5 (2016): ADVANCES IN MODELLING AND SIMULATION OF WIND SYSTEMS AND ANALYSING AND DESIGN OF OFFSHORE SYSTEMS; 257-271 Revista Interdisciplinar de Pesquisa em Engenharia; v. 2 n. 5 (2016): ADVANCES IN MODELLING AND SIMULATION OF WIND SYSTEMS AND ANALYSING AND DESIGN OF OFFSHORE SYSTEMS; 257-271 2447-6102 reponame:Revista Interdisciplinar de Pesquisa em Engenharia instname:Universidade de Brasília (UnB) instacron:UNB |
instname_str |
Universidade de Brasília (UnB) |
instacron_str |
UNB |
institution |
UNB |
reponame_str |
Revista Interdisciplinar de Pesquisa em Engenharia |
collection |
Revista Interdisciplinar de Pesquisa em Engenharia |
repository.name.fl_str_mv |
Revista Interdisciplinar de Pesquisa em Engenharia - Universidade de Brasília (UnB) |
repository.mail.fl_str_mv |
anflor@unb.br |
_version_ |
1754574930902515712 |