Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Tipo de documento: | Trabalho de conclusão de curso |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFU |
Texto Completo: | https://repositorio.ufu.br/handle/123456789/29418 |
Resumo: | Perhaps the major concern of the transport industry is the product’s performance. It is the factor that makes the product attractive to the consumer. At automobiles, the efforts that go against the engine thrust are the drag and the frictional force between the wheel’s tire and the ground. Thus, this work’s goal is the aerodynamics characterization of the airflow between a very specific class of vehicles: the pickups. Due to the cargo capacity allowed by the bed, this category became representative on the automobile world’s fleet. And so, the bed is one the spotlights when talking about aerodynamics. Because it is an open cavity, the area is prone to the appearance of vortices. Also, the brute difference between the hood and the tail geometry makes the drag to increase. Thereby, this work is the continuation of a major project in development by the Experimental Aerodynamics Research Center of the Federal University of Uberlândia and has as objective the experimental study of this phenomenon by quantitative and qualitative approaches. Thus, two generic pickup models scaled in 1:10 were developed and tested in a wind tunnel at a Reynolds number close to 5x105. The models are simplified from an actual pickup and are equals, except one has live edges and the other rounded edges. In order to fully characterize the airflow between the models, flow visualization technics, the determination of pressure and velocity fields and drag were applied trough the utilization of tufts, smoke, hot-wire anemometry, pressure transducers and an aerodynamics balance. The results to the rounded corners have shown a reduction of approximately 30% on the drag coefficient and a velocity profile with less intense variations. In matters of the visualization, the rounded corner model has presented an airflow smoother in the transition between surfaces and more soft recirculation zones and boundary lawyer detachment. |
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2020-06-15T18:21:11Z2020-06-15T18:21:11Z2019-12-16BOTTER, Caio Roberto. Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods. 2019. 74 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Aeronáutica) – Universidade Federal de Uberlândia, Uberlândia, 2020.https://repositorio.ufu.br/handle/123456789/29418Perhaps the major concern of the transport industry is the product’s performance. It is the factor that makes the product attractive to the consumer. At automobiles, the efforts that go against the engine thrust are the drag and the frictional force between the wheel’s tire and the ground. Thus, this work’s goal is the aerodynamics characterization of the airflow between a very specific class of vehicles: the pickups. Due to the cargo capacity allowed by the bed, this category became representative on the automobile world’s fleet. And so, the bed is one the spotlights when talking about aerodynamics. Because it is an open cavity, the area is prone to the appearance of vortices. Also, the brute difference between the hood and the tail geometry makes the drag to increase. Thereby, this work is the continuation of a major project in development by the Experimental Aerodynamics Research Center of the Federal University of Uberlândia and has as objective the experimental study of this phenomenon by quantitative and qualitative approaches. Thus, two generic pickup models scaled in 1:10 were developed and tested in a wind tunnel at a Reynolds number close to 5x105. The models are simplified from an actual pickup and are equals, except one has live edges and the other rounded edges. In order to fully characterize the airflow between the models, flow visualization technics, the determination of pressure and velocity fields and drag were applied trough the utilization of tufts, smoke, hot-wire anemometry, pressure transducers and an aerodynamics balance. The results to the rounded corners have shown a reduction of approximately 30% on the drag coefficient and a velocity profile with less intense variations. In matters of the visualization, the rounded corner model has presented an airflow smoother in the transition between surfaces and more soft recirculation zones and boundary lawyer detachment.Perhaps the major concern of the transport industry is the product’s performance. It is the factor that makes the product attractive to the consumer. At automobiles, the efforts that go against the engine thrust are the drag and the frictional force between the wheel’s tire and the ground. Thus, this work’s goal is the aerodynamics characterization of the airflow between a very specific class of vehicles: the pickups. Due to the cargo capacity allowed by the bed, this category became representative on the automobile world’s fleet. And so, the bed is one the spotlights when talking about aerodynamics. Because it is an open cavity, the area is prone to the appearance of vortices. Also, the brute difference between the hood and the tail geometry makes the drag to increase. Thereby, this work is the continuation of a major project in development by the Experimental Aerodynamics Research Center of the Federal University of Uberlândia and has as objective the experimental study of this phenomenon by quantitative and qualitative approaches. Thus, two generic pickup models scaled in 1:10 were developed and tested in a wind tunnel at a Reynolds number close to 5x105. The models are simplified from an actual pickup and are equals, except one has live edges and the other rounded edges. In order to fully characterize the airflow between the models, flow visualization technics, the determination of pressure and velocity fields and drag were applied trough the utilization of tufts, smoke, hot-wire anemometry, pressure transducers and an aerodynamics balance. The results to the rounded corners have shown a reduction of approximately 30% on the drag coefficient and a velocity profile with less intense variations. In matters of the visualization, the rounded corner model has presented an airflow smoother in the transition between surfaces and more soft recirculation zones and boundary lawyer detachment.Pesquisa sem auxílio de agências de fomentoTrabalho de Conclusão de Curso (Graduação)engUniversidade Federal de UberlândiaEngenharia AeronáuticaBrasilCNPQ::ENGENHARIAS::ENGENHARIA MECANICACNPQ::ENGENHARIAS::ENGENHARIA AEROESPACIALWind tunnelAerodynamicsPickupVisualizationDragAnalysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methodsAnálise do escoamento de ar ao redor de pick-ups: uma desctrição experimental com métodos quantitativos e qualitativosinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesisAlmeida, Odenir dehttp://lattes.cnpq.br/8197975215358295Morais, Tobias Souzahttp://lattes.cnpq.br/1662045974941011Souza, Francisco José dehttp://lattes.cnpq.br/1257320066520278http://lattes.cnpq.br/2966398651049556Botter, Caio Roberto7475700640info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFUinstname:Universidade Federal de Uberlândia (UFU)instacron:UFULICENSElicense.txtlicense.txttext/plain; charset=utf-81792https://repositorio.ufu.br/bitstream/123456789/29418/2/license.txt48ded82ce41b8d2426af12aed6b3cbf3MD52ORIGINALAnalysisAirflowAround.pdfAnalysisAirflowAround.pdfANALYSIS OF THE AIRFLOW AROUND PICK-UPS: AN EXPERIMENTAL DESCRIPTION WITH QUANTITATIVE AND QUALITATIVE METHODSapplication/pdf5454204https://repositorio.ufu.br/bitstream/123456789/29418/1/AnalysisAirflowAround.pdff59a61491cdca2d20ff25861f08ad5f6MD51TEXTAnalysisAirflowAround.pdf.txtAnalysisAirflowAround.pdf.txtExtracted texttext/plain116503https://repositorio.ufu.br/bitstream/123456789/29418/3/AnalysisAirflowAround.pdf.txtb23a814ac9548251aa752340f93cd6ceMD53THUMBNAILAnalysisAirflowAround.pdf.jpgAnalysisAirflowAround.pdf.jpgGenerated Thumbnailimage/jpeg1439https://repositorio.ufu.br/bitstream/123456789/29418/4/AnalysisAirflowAround.pdf.jpgbaf24ea18e97f381f882d7a7fa6446b0MD54123456789/294182020-06-16 03:15:46.022oai:repositorio.ufu.br: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Repositório InstitucionalONGhttp://repositorio.ufu.br/oai/requestdiinf@dirbi.ufu.bropendoar:2020-06-16T06:15:46Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)false |
dc.title.pt_BR.fl_str_mv |
Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods |
dc.title.alternative.pt_BR.fl_str_mv |
Análise do escoamento de ar ao redor de pick-ups: uma desctrição experimental com métodos quantitativos e qualitativos |
title |
Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods |
spellingShingle |
Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods Botter, Caio Roberto CNPQ::ENGENHARIAS::ENGENHARIA MECANICA CNPQ::ENGENHARIAS::ENGENHARIA AEROESPACIAL Wind tunnel Aerodynamics Pickup Visualization Drag |
title_short |
Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods |
title_full |
Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods |
title_fullStr |
Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods |
title_full_unstemmed |
Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods |
title_sort |
Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods |
author |
Botter, Caio Roberto |
author_facet |
Botter, Caio Roberto |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Almeida, Odenir de |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/8197975215358295 |
dc.contributor.referee1.fl_str_mv |
Morais, Tobias Souza |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/1662045974941011 |
dc.contributor.referee2.fl_str_mv |
Souza, Francisco José de |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/1257320066520278 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/2966398651049556 |
dc.contributor.author.fl_str_mv |
Botter, Caio Roberto |
contributor_str_mv |
Almeida, Odenir de Morais, Tobias Souza Souza, Francisco José de |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA MECANICA CNPQ::ENGENHARIAS::ENGENHARIA AEROESPACIAL |
topic |
CNPQ::ENGENHARIAS::ENGENHARIA MECANICA CNPQ::ENGENHARIAS::ENGENHARIA AEROESPACIAL Wind tunnel Aerodynamics Pickup Visualization Drag |
dc.subject.por.fl_str_mv |
Wind tunnel Aerodynamics Pickup Visualization Drag |
description |
Perhaps the major concern of the transport industry is the product’s performance. It is the factor that makes the product attractive to the consumer. At automobiles, the efforts that go against the engine thrust are the drag and the frictional force between the wheel’s tire and the ground. Thus, this work’s goal is the aerodynamics characterization of the airflow between a very specific class of vehicles: the pickups. Due to the cargo capacity allowed by the bed, this category became representative on the automobile world’s fleet. And so, the bed is one the spotlights when talking about aerodynamics. Because it is an open cavity, the area is prone to the appearance of vortices. Also, the brute difference between the hood and the tail geometry makes the drag to increase. Thereby, this work is the continuation of a major project in development by the Experimental Aerodynamics Research Center of the Federal University of Uberlândia and has as objective the experimental study of this phenomenon by quantitative and qualitative approaches. Thus, two generic pickup models scaled in 1:10 were developed and tested in a wind tunnel at a Reynolds number close to 5x105. The models are simplified from an actual pickup and are equals, except one has live edges and the other rounded edges. In order to fully characterize the airflow between the models, flow visualization technics, the determination of pressure and velocity fields and drag were applied trough the utilization of tufts, smoke, hot-wire anemometry, pressure transducers and an aerodynamics balance. The results to the rounded corners have shown a reduction of approximately 30% on the drag coefficient and a velocity profile with less intense variations. In matters of the visualization, the rounded corner model has presented an airflow smoother in the transition between surfaces and more soft recirculation zones and boundary lawyer detachment. |
publishDate |
2019 |
dc.date.issued.fl_str_mv |
2019-12-16 |
dc.date.accessioned.fl_str_mv |
2020-06-15T18:21:11Z |
dc.date.available.fl_str_mv |
2020-06-15T18:21:11Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/bachelorThesis |
format |
bachelorThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
BOTTER, Caio Roberto. Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods. 2019. 74 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Aeronáutica) – Universidade Federal de Uberlândia, Uberlândia, 2020. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufu.br/handle/123456789/29418 |
identifier_str_mv |
BOTTER, Caio Roberto. Analysis of the airflow around pick-ups: an experimental description with quantitative and qualitative methods. 2019. 74 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Aeronáutica) – Universidade Federal de Uberlândia, Uberlândia, 2020. |
url |
https://repositorio.ufu.br/handle/123456789/29418 |
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.publisher.none.fl_str_mv |
Universidade Federal de Uberlândia Engenharia Aeronáutica |
dc.publisher.country.fl_str_mv |
Brasil |
publisher.none.fl_str_mv |
Universidade Federal de Uberlândia Engenharia Aeronáutica |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFU instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
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Universidade Federal de Uberlândia (UFU) |
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UFU |
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UFU |
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Repositório Institucional da UFU |
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Repositório Institucional da UFU |
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