A Numerical Investigation of Localized and Steady Energy Addition to High Speed Airflows

Detalhes bibliográficos
Autor(a) principal: Fraile Jr,Andre Carlos
Data de Publicação: 2013
Outros Autores: Rosa,Mauricio Antoniazzi Pinheiro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of Aerospace Technology and Management (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462013000200169
Resumo: ABSTRACT This work presents a numerical analysis of the gas dynamic problem of localized and steady energy addition to uniform high-speed airflows. Firstly, the general effects caused by a localized energy deposition on the flow were investigated, then an extensive parametric analysis concerning the effects of energy deposition rate and dispersion for different free stream flow speeds was performed. As a general result, localized and steady energy deposition generates compression waves and constant property flow stream tube downstream to the source. The parametric analysis results have shown that either increasing the rate or decreasing dispersion in the orthogonal direction to the flow of the deposited energy has the effect of enhancing property flow changes, which is even more pronounced for lower flow speeds. In contrast, energy dispersion in the flow direction has presented very little effect on the flow changes. The results of this numerical analysis should be very helpful in studies of energy addition applications in hypersonic.
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spelling A Numerical Investigation of Localized and Steady Energy Addition to High Speed AirflowsHigh speed flowEnergy additionFlow controlNumerical analysisABSTRACT This work presents a numerical analysis of the gas dynamic problem of localized and steady energy addition to uniform high-speed airflows. Firstly, the general effects caused by a localized energy deposition on the flow were investigated, then an extensive parametric analysis concerning the effects of energy deposition rate and dispersion for different free stream flow speeds was performed. As a general result, localized and steady energy deposition generates compression waves and constant property flow stream tube downstream to the source. The parametric analysis results have shown that either increasing the rate or decreasing dispersion in the orthogonal direction to the flow of the deposited energy has the effect of enhancing property flow changes, which is even more pronounced for lower flow speeds. In contrast, energy dispersion in the flow direction has presented very little effect on the flow changes. The results of this numerical analysis should be very helpful in studies of energy addition applications in hypersonic.Departamento de Ciência e Tecnologia Aeroespacial2013-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462013000200169Journal of Aerospace Technology and Management v.5 n.2 2013reponame:Journal of Aerospace Technology and Management (Online)instname:Departamento de Ciência e Tecnologia Aeroespacial (DCTA)instacron:DCTA10.5028/jatm.v5i2.207info:eu-repo/semantics/openAccessFraile Jr,Andre CarlosRosa,Mauricio Antoniazzi Pinheiroeng2017-05-25T00:00:00Zoai:scielo:S2175-91462013000200169Revistahttp://www.jatm.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||secretary@jatm.com.br2175-91461984-9648opendoar:2017-05-25T00:00Journal of Aerospace Technology and Management (Online) - Departamento de Ciência e Tecnologia Aeroespacial (DCTA)false
dc.title.none.fl_str_mv A Numerical Investigation of Localized and Steady Energy Addition to High Speed Airflows
title A Numerical Investigation of Localized and Steady Energy Addition to High Speed Airflows
spellingShingle A Numerical Investigation of Localized and Steady Energy Addition to High Speed Airflows
Fraile Jr,Andre Carlos
High speed flow
Energy addition
Flow control
Numerical analysis
title_short A Numerical Investigation of Localized and Steady Energy Addition to High Speed Airflows
title_full A Numerical Investigation of Localized and Steady Energy Addition to High Speed Airflows
title_fullStr A Numerical Investigation of Localized and Steady Energy Addition to High Speed Airflows
title_full_unstemmed A Numerical Investigation of Localized and Steady Energy Addition to High Speed Airflows
title_sort A Numerical Investigation of Localized and Steady Energy Addition to High Speed Airflows
author Fraile Jr,Andre Carlos
author_facet Fraile Jr,Andre Carlos
Rosa,Mauricio Antoniazzi Pinheiro
author_role author
author2 Rosa,Mauricio Antoniazzi Pinheiro
author2_role author
dc.contributor.author.fl_str_mv Fraile Jr,Andre Carlos
Rosa,Mauricio Antoniazzi Pinheiro
dc.subject.por.fl_str_mv High speed flow
Energy addition
Flow control
Numerical analysis
topic High speed flow
Energy addition
Flow control
Numerical analysis
description ABSTRACT This work presents a numerical analysis of the gas dynamic problem of localized and steady energy addition to uniform high-speed airflows. Firstly, the general effects caused by a localized energy deposition on the flow were investigated, then an extensive parametric analysis concerning the effects of energy deposition rate and dispersion for different free stream flow speeds was performed. As a general result, localized and steady energy deposition generates compression waves and constant property flow stream tube downstream to the source. The parametric analysis results have shown that either increasing the rate or decreasing dispersion in the orthogonal direction to the flow of the deposited energy has the effect of enhancing property flow changes, which is even more pronounced for lower flow speeds. In contrast, energy dispersion in the flow direction has presented very little effect on the flow changes. The results of this numerical analysis should be very helpful in studies of energy addition applications in hypersonic.
publishDate 2013
dc.date.none.fl_str_mv 2013-06-01
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=S2175-91462013000200169
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462013000200169
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5028/jatm.v5i2.207
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.5 n.2 2013
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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