Study of Gas Turbulent Dispersion Process in the Alcântara Launch Center
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Publication Date: | 2018 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Journal of Aerospace Technology and Management (Online) |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462018000100337 |
Summary: | ABSTRACT: 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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Study of Gas Turbulent Dispersion Process in the Alcântara Launch CenterWind tunnelGas concentrationDiffusionAspirating probeABSTRACT: 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.Departamento de Ciência e Tecnologia Aeroespacial2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462018000100337Journal of Aerospace Technology and Management v.10 2018reponame:Journal of Aerospace Technology and Management (Online)instname:Departamento de Ciência e Tecnologia Aeroespacial (DCTA)instacron:DCTA10.5028/jatm.v10.956info:eu-repo/semantics/openAccessWittwer,AdriánLoredo-Souza,AcirOliveira,MarioFisch,GilbertoSouza,Bianca deGoulart,Elisaeng2018-10-22T00:00:00Zoai:scielo:S2175-91462018000100337Revistahttp://www.jatm.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||secretary@jatm.com.br2175-91461984-9648opendoar:2018-10-22T00:00Journal of Aerospace Technology and Management (Online) - Departamento de Ciência e Tecnologia Aeroespacial (DCTA)false |
dc.title.none.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 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 |
author_facet |
Wittwer,Adrián Loredo-Souza,Acir Oliveira,Mario Fisch,Gilberto Souza,Bianca de Goulart,Elisa |
author_role |
author |
author2 |
Loredo-Souza,Acir Oliveira,Mario Fisch,Gilberto Souza,Bianca de Goulart,Elisa |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Wittwer,Adrián Loredo-Souza,Acir Oliveira,Mario Fisch,Gilberto Souza,Bianca de Goulart,Elisa |
dc.subject.por.fl_str_mv |
Wind tunnel Gas concentration Diffusion Aspirating probe |
topic |
Wind tunnel Gas concentration Diffusion Aspirating probe |
description |
ABSTRACT: 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.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=S2175-91462018000100337 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462018000100337 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5028/jatm.v10.956 |
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 |
Departamento de Ciência e Tecnologia Aeroespacial |
publisher.none.fl_str_mv |
Departamento de Ciência e Tecnologia Aeroespacial |
dc.source.none.fl_str_mv |
Journal of Aerospace Technology and Management v.10 2018 reponame:Journal of Aerospace Technology and Management (Online) instname:Departamento de Ciência e Tecnologia Aeroespacial (DCTA) instacron:DCTA |
instname_str |
Departamento de Ciência e Tecnologia Aeroespacial (DCTA) |
instacron_str |
DCTA |
institution |
DCTA |
reponame_str |
Journal of Aerospace Technology and Management (Online) |
collection |
Journal of Aerospace Technology and Management (Online) |
repository.name.fl_str_mv |
Journal of Aerospace Technology and Management (Online) - Departamento de Ciência e Tecnologia Aeroespacial (DCTA) |
repository.mail.fl_str_mv |
||secretary@jatm.com.br |
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1754732531989610496 |