Study of gas turbulent dispersion process in the Alcântara Launch Center

Detalhes bibliográficos
Autor(a) principal: Wittwer, Adrián Roberto
Data de Publicação: 2018
Outros Autores: Loredo-Souza, Acir Mércio, Oliveira, Mário Gustavo Klaus, Fisch, Gilberto Fernando, Souza, Bianca Hulle de, Goulart, Elisa Valentim
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/230183
Resumo: The Alcântara Launch Center (ALC) is the Brazilian gate to the space located at the north coast of Maranhão State, close to the Equator. Topographical local characteristics modify the parameters of incident atmospheric winds and it can cause great influence on the gas dispersion process. In this work, detailed scale models of the ALC region was experimentally evaluated using a wind tunnel. The topographical scale models were built where mean and fluctuating flow characteristics were analysed in order to understand the real behaviour of ALC winds and then, simulations of the effluent dispersion process were made using these scale models. The wind velocity was measured by a hot wire anemometer and the concentration fields in the proximities of a gas emission source were analysed by an aspirating probe connected to the anemometer system. The results obtained show similarity with numerical outputs from previous study in the case of the emission at ground level. A coherent behaviour with the physic of the phenomena was observed for the case of emission downward.
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spelling Wittwer, Adrián RobertoLoredo-Souza, Acir MércioOliveira, Mário Gustavo KlausFisch, Gilberto FernandoSouza, Bianca Hulle deGoulart, Elisa Valentim2021-09-24T04:22:27Z20182175-9146http://hdl.handle.net/10183/230183001130886The Alcântara Launch Center (ALC) is the Brazilian gate to the space located at the north coast of Maranhão State, close to the Equator. Topographical local characteristics modify the parameters of incident atmospheric winds and it can cause great influence on the gas dispersion process. In this work, detailed scale models of the ALC region was experimentally evaluated using a wind tunnel. The topographical scale models were built where mean and fluctuating flow characteristics were analysed in order to understand the real behaviour of ALC winds and then, simulations of the effluent dispersion process were made using these scale models. The wind velocity was measured by a hot wire anemometer and the concentration fields in the proximities of a gas emission source were analysed by an aspirating probe connected to the anemometer system. The results obtained show similarity with numerical outputs from previous study in the case of the emission at ground level. A coherent behaviour with the physic of the phenomena was observed for the case of emission downward.application/pdfengJournal of aerospace technology and management [recurso eletrônico]. São José dos Campos. Vol. 10 (2018), e4318, 17 p.Túnel de ventoDispersão turbulentaWind tunnelGas concentrationDiffusionAspirating probeStudy of gas turbulent dispersion process in the Alcântara Launch Centerinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001130886.pdf.txt001130886.pdf.txtExtracted Texttext/plain50152http://www.lume.ufrgs.br/bitstream/10183/230183/2/001130886.pdf.txtf9edc3b44df53163eb11a253fddb0fafMD52ORIGINAL001130886.pdfTexto completo (inglês)application/pdf6312621http://www.lume.ufrgs.br/bitstream/10183/230183/1/001130886.pdf90a7881407237c2ac52b807bcda59897MD5110183/2301832021-11-20 06:02:57.40254oai:www.lume.ufrgs.br:10183/230183Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-11-20T08:02:57Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Study of gas turbulent dispersion process in the Alcântara Launch Center
title Study of gas turbulent dispersion process in the Alcântara Launch Center
spellingShingle Study of gas turbulent dispersion process in the Alcântara Launch Center
Wittwer, Adrián Roberto
Túnel de vento
Dispersão turbulenta
Wind tunnel
Gas concentration
Diffusion
Aspirating probe
title_short Study of gas turbulent dispersion process in the Alcântara Launch Center
title_full Study of gas turbulent dispersion process in the Alcântara Launch Center
title_fullStr Study of gas turbulent dispersion process in the Alcântara Launch Center
title_full_unstemmed Study of gas turbulent dispersion process in the Alcântara Launch Center
title_sort Study of gas turbulent dispersion process in the Alcântara Launch Center
author Wittwer, Adrián Roberto
author_facet Wittwer, Adrián Roberto
Loredo-Souza, Acir Mércio
Oliveira, Mário Gustavo Klaus
Fisch, Gilberto Fernando
Souza, Bianca Hulle de
Goulart, Elisa Valentim
author_role author
author2 Loredo-Souza, Acir Mércio
Oliveira, Mário Gustavo Klaus
Fisch, Gilberto Fernando
Souza, Bianca Hulle de
Goulart, Elisa Valentim
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Wittwer, Adrián Roberto
Loredo-Souza, Acir Mércio
Oliveira, Mário Gustavo Klaus
Fisch, Gilberto Fernando
Souza, Bianca Hulle de
Goulart, Elisa Valentim
dc.subject.por.fl_str_mv Túnel de vento
Dispersão turbulenta
topic Túnel de vento
Dispersão turbulenta
Wind tunnel
Gas concentration
Diffusion
Aspirating probe
dc.subject.eng.fl_str_mv Wind tunnel
Gas concentration
Diffusion
Aspirating probe
description The Alcântara Launch Center (ALC) is the Brazilian gate to the space located at the north coast of Maranhão State, close to the Equator. Topographical local characteristics modify the parameters of incident atmospheric winds and it can cause great influence on the gas dispersion process. In this work, detailed scale models of the ALC region was experimentally evaluated using a wind tunnel. The topographical scale models were built where mean and fluctuating flow characteristics were analysed in order to understand the real behaviour of ALC winds and then, simulations of the effluent dispersion process were made using these scale models. The wind velocity was measured by a hot wire anemometer and the concentration fields in the proximities of a gas emission source were analysed by an aspirating probe connected to the anemometer system. The results obtained show similarity with numerical outputs from previous study in the case of the emission at ground level. A coherent behaviour with the physic of the phenomena was observed for the case of emission downward.
publishDate 2018
dc.date.issued.fl_str_mv 2018
dc.date.accessioned.fl_str_mv 2021-09-24T04:22:27Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/other
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/230183
dc.identifier.issn.pt_BR.fl_str_mv 2175-9146
dc.identifier.nrb.pt_BR.fl_str_mv 001130886
identifier_str_mv 2175-9146
001130886
url http://hdl.handle.net/10183/230183
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Journal of aerospace technology and management [recurso eletrônico]. São José dos Campos. Vol. 10 (2018), e4318, 17 p.
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 UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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