Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds.
Autor(a) principal: | |
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Data de Publicação: | 2024 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
dARK ID: | ark:/61566/0013000004vrh |
Texto Completo: | https://www.repositorio.ufop.br/handle/123456789/19281 https://doi.org/10.35840/2631-5009/7566 |
Resumo: | Computational Fluid Dynamics (CFD) techniques are currently an alternative or complementary approach to experimental tests in the field of fluid dynamics. Therefore, this article aims to numerically study the airflow around the NACA 0012 airfoil profile at low speeds using ANSYS® Fluent and two turbulence models (Spalart Allmaras and k-ε). The objective is to evaluate the coefficients of lift, drag, and pressure, as well as the lift to-drag ratio and turbulent wake distribution. The results were considered acceptable through experimental research by Abbott, et al. [1] and Ladson, et al. [2] and showed promising results (CL with an error margin below 5% and maximum aerodynamic efficiency L/D at α = 9°), although they are physically coherent but not as precise (CD demonstrated an error margin of 50%). It was also observed that the Spalart-Allmaras model exhibited better physical coherence in the turbulent wake distribution results compared to the k-ε model, indicating that the latter is not recommended for simulations subjected to adverse pressure gradients. |
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Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds.LiftDragSpalart-AllmarasComputational Fluid Dynamics (CFD) techniques are currently an alternative or complementary approach to experimental tests in the field of fluid dynamics. Therefore, this article aims to numerically study the airflow around the NACA 0012 airfoil profile at low speeds using ANSYS® Fluent and two turbulence models (Spalart Allmaras and k-ε). The objective is to evaluate the coefficients of lift, drag, and pressure, as well as the lift to-drag ratio and turbulent wake distribution. The results were considered acceptable through experimental research by Abbott, et al. [1] and Ladson, et al. [2] and showed promising results (CL with an error margin below 5% and maximum aerodynamic efficiency L/D at α = 9°), although they are physically coherent but not as precise (CD demonstrated an error margin of 50%). It was also observed that the Spalart-Allmaras model exhibited better physical coherence in the turbulent wake distribution results compared to the k-ε model, indicating that the latter is not recommended for simulations subjected to adverse pressure gradients.2024-12-05T19:38:32Z2024-12-05T19:38:32Z2024info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLIMA, A. H. de M.; ROCHA, L. J. C. Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds. International Journal of Astronautics and Aeronautical Engineering, v. 9, artgio 066, 2024. Disponível em: <https://vibgyorpublishers.org/content/ijaae/ijaae-9-066.php>. Acesso em: 15 ago. 2024.2631-5009https://www.repositorio.ufop.br/handle/123456789/19281https://doi.org/10.35840/2631-5009/7566ark:/61566/0013000004vrhThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Fonte: PDF do artigo.info:eu-repo/semantics/openAccessLima, Augusto Henrique de MirandaRocha , Luiz Joaquim Cardosoengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOP2024-12-05T19:38:37Zoai:repositorio.ufop.br:123456789/19281Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332024-12-05T19:38:37Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.none.fl_str_mv |
Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds. |
title |
Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds. |
spellingShingle |
Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds. Lima, Augusto Henrique de Miranda Lift Drag Spalart-Allmaras |
title_short |
Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds. |
title_full |
Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds. |
title_fullStr |
Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds. |
title_full_unstemmed |
Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds. |
title_sort |
Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds. |
author |
Lima, Augusto Henrique de Miranda |
author_facet |
Lima, Augusto Henrique de Miranda Rocha , Luiz Joaquim Cardoso |
author_role |
author |
author2 |
Rocha , Luiz Joaquim Cardoso |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Lima, Augusto Henrique de Miranda Rocha , Luiz Joaquim Cardoso |
dc.subject.por.fl_str_mv |
Lift Drag Spalart-Allmaras |
topic |
Lift Drag Spalart-Allmaras |
description |
Computational Fluid Dynamics (CFD) techniques are currently an alternative or complementary approach to experimental tests in the field of fluid dynamics. Therefore, this article aims to numerically study the airflow around the NACA 0012 airfoil profile at low speeds using ANSYS® Fluent and two turbulence models (Spalart Allmaras and k-ε). The objective is to evaluate the coefficients of lift, drag, and pressure, as well as the lift to-drag ratio and turbulent wake distribution. The results were considered acceptable through experimental research by Abbott, et al. [1] and Ladson, et al. [2] and showed promising results (CL with an error margin below 5% and maximum aerodynamic efficiency L/D at α = 9°), although they are physically coherent but not as precise (CD demonstrated an error margin of 50%). It was also observed that the Spalart-Allmaras model exhibited better physical coherence in the turbulent wake distribution results compared to the k-ε model, indicating that the latter is not recommended for simulations subjected to adverse pressure gradients. |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024-12-05T19:38:32Z 2024-12-05T19:38:32Z 2024 |
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 |
LIMA, A. H. de M.; ROCHA, L. J. C. Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds. International Journal of Astronautics and Aeronautical Engineering, v. 9, artgio 066, 2024. Disponível em: <https://vibgyorpublishers.org/content/ijaae/ijaae-9-066.php>. Acesso em: 15 ago. 2024. 2631-5009 https://www.repositorio.ufop.br/handle/123456789/19281 https://doi.org/10.35840/2631-5009/7566 |
dc.identifier.dark.fl_str_mv |
ark:/61566/0013000004vrh |
identifier_str_mv |
LIMA, A. H. de M.; ROCHA, L. J. C. Analysis of the influence of two turbulence models on the numerical results of a computational fluid dynamics simulation for the NACA 0012 airfoil profile at low speeds. International Journal of Astronautics and Aeronautical Engineering, v. 9, artgio 066, 2024. Disponível em: <https://vibgyorpublishers.org/content/ijaae/ijaae-9-066.php>. Acesso em: 15 ago. 2024. 2631-5009 ark:/61566/0013000004vrh |
url |
https://www.repositorio.ufop.br/handle/123456789/19281 https://doi.org/10.35840/2631-5009/7566 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFOP instname:Universidade Federal de Ouro Preto (UFOP) instacron:UFOP |
instname_str |
Universidade Federal de Ouro Preto (UFOP) |
instacron_str |
UFOP |
institution |
UFOP |
reponame_str |
Repositório Institucional da UFOP |
collection |
Repositório Institucional da UFOP |
repository.name.fl_str_mv |
Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP) |
repository.mail.fl_str_mv |
repositorio@ufop.edu.br |
_version_ |
1817705758801788928 |