Leading-edge bluntness effects on aerodynamic heating and drag of power law body in low-density hypersonic flow

Detalhes bibliográficos
Autor(a) principal: Santos,W. F. N.
Data de Publicação: 2005
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782005000300004
Resumo: A numerical study is reported on power law shaped leading edges situated in a rarefied hypersonic flow. The sensitivity of the heat flux and drag coefficient to shape variations of such leading edges is calculated by using a Direct Simulation Monte Carlo method. Calculations show that the stagnation point heating on power law leading edges with finite radius of curvature follows the same relation for classical blunt body in continuum flow; it scales inversely with the square root of the curvature radius at the nose. Furthermore, for those leading edges with zero or infinity radii of curvature, the heat transfer behavior is in surprising agreement with that for classical blunt body far from the nose of the leading edge.
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spelling Leading-edge bluntness effects on aerodynamic heating and drag of power law body in low-density hypersonic flowAerodynamic heatingDSMChypersonic flowrarefied flowblunt bodyA numerical study is reported on power law shaped leading edges situated in a rarefied hypersonic flow. The sensitivity of the heat flux and drag coefficient to shape variations of such leading edges is calculated by using a Direct Simulation Monte Carlo method. Calculations show that the stagnation point heating on power law leading edges with finite radius of curvature follows the same relation for classical blunt body in continuum flow; it scales inversely with the square root of the curvature radius at the nose. Furthermore, for those leading edges with zero or infinity radii of curvature, the heat transfer behavior is in surprising agreement with that for classical blunt body far from the nose of the leading edge.Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM2005-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782005000300004Journal of the Brazilian Society of Mechanical Sciences and Engineering v.27 n.3 2005reponame:Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/S1678-58782005000300004info:eu-repo/semantics/openAccessSantos,W. F. N.eng2005-09-05T00:00:00Zoai:scielo:S1678-58782005000300004Revistahttps://www.scielo.br/j/jbsmse/https://old.scielo.br/oai/scielo-oai.php||abcm@abcm.org.br1806-36911678-5878opendoar:2005-09-05T00:00Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv Leading-edge bluntness effects on aerodynamic heating and drag of power law body in low-density hypersonic flow
title Leading-edge bluntness effects on aerodynamic heating and drag of power law body in low-density hypersonic flow
spellingShingle Leading-edge bluntness effects on aerodynamic heating and drag of power law body in low-density hypersonic flow
Santos,W. F. N.
Aerodynamic heating
DSMC
hypersonic flow
rarefied flow
blunt body
title_short Leading-edge bluntness effects on aerodynamic heating and drag of power law body in low-density hypersonic flow
title_full Leading-edge bluntness effects on aerodynamic heating and drag of power law body in low-density hypersonic flow
title_fullStr Leading-edge bluntness effects on aerodynamic heating and drag of power law body in low-density hypersonic flow
title_full_unstemmed Leading-edge bluntness effects on aerodynamic heating and drag of power law body in low-density hypersonic flow
title_sort Leading-edge bluntness effects on aerodynamic heating and drag of power law body in low-density hypersonic flow
author Santos,W. F. N.
author_facet Santos,W. F. N.
author_role author
dc.contributor.author.fl_str_mv Santos,W. F. N.
dc.subject.por.fl_str_mv Aerodynamic heating
DSMC
hypersonic flow
rarefied flow
blunt body
topic Aerodynamic heating
DSMC
hypersonic flow
rarefied flow
blunt body
description A numerical study is reported on power law shaped leading edges situated in a rarefied hypersonic flow. The sensitivity of the heat flux and drag coefficient to shape variations of such leading edges is calculated by using a Direct Simulation Monte Carlo method. Calculations show that the stagnation point heating on power law leading edges with finite radius of curvature follows the same relation for classical blunt body in continuum flow; it scales inversely with the square root of the curvature radius at the nose. Furthermore, for those leading edges with zero or infinity radii of curvature, the heat transfer behavior is in surprising agreement with that for classical blunt body far from the nose of the leading edge.
publishDate 2005
dc.date.none.fl_str_mv 2005-09-01
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=S1678-58782005000300004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782005000300004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1678-58782005000300004
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 Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM
publisher.none.fl_str_mv Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM
dc.source.none.fl_str_mv Journal of the Brazilian Society of Mechanical Sciences and Engineering v.27 n.3 2005
reponame:Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)
instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron:ABCM
instname_str Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron_str ABCM
institution ABCM
reponame_str Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)
collection Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)
repository.name.fl_str_mv Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
repository.mail.fl_str_mv ||abcm@abcm.org.br
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