Optimization of Airfoils for Minimum Pitching Moment and Compressibility Drag Coefficients
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | |
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=S2175-91462014000400395 |
Resumo: | ABSTRACT: This paper concerns a numerical optimization method for designing airfoils based on adjoint method. The goal of present work is to reduce the compressibility drag or pitching moment of transonic airfoils without compromising on the lift coefficient. A new cost function based on this requirement is defined and the corresponding adjoint equations are discussed in details. At the end, by demonstrating some numerical results, we show that this technique is capable of converging to the optimum design point corresponding to the initial geometry of the airfoil. |
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Journal of Aerospace Technology and Management (Online) |
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Optimization of Airfoils for Minimum Pitching Moment and Compressibility Drag CoefficientsOptimizationPitching momentTransonic airfoilsAdjoint equationsEuler equationsABSTRACT: This paper concerns a numerical optimization method for designing airfoils based on adjoint method. The goal of present work is to reduce the compressibility drag or pitching moment of transonic airfoils without compromising on the lift coefficient. A new cost function based on this requirement is defined and the corresponding adjoint equations are discussed in details. At the end, by demonstrating some numerical results, we show that this technique is capable of converging to the optimum design point corresponding to the initial geometry of the airfoil.Departamento de Ciência e Tecnologia Aeroespacial2014-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462014000400395Journal of Aerospace Technology and Management v.6 n.4 2014reponame:Journal of Aerospace Technology and Management (Online)instname:Departamento de Ciência e Tecnologia Aeroespacial (DCTA)instacron:DCTA10.5028/jatm.v6i4.403info:eu-repo/semantics/openAccessFarrokhfal,HamidPishevar,Ahmad Rezaeng2017-05-26T00:00:00Zoai:scielo:S2175-91462014000400395Revistahttp://www.jatm.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||secretary@jatm.com.br2175-91461984-9648opendoar:2017-05-26T00:00Journal of Aerospace Technology and Management (Online) - Departamento de Ciência e Tecnologia Aeroespacial (DCTA)false |
dc.title.none.fl_str_mv |
Optimization of Airfoils for Minimum Pitching Moment and Compressibility Drag Coefficients |
title |
Optimization of Airfoils for Minimum Pitching Moment and Compressibility Drag Coefficients |
spellingShingle |
Optimization of Airfoils for Minimum Pitching Moment and Compressibility Drag Coefficients Farrokhfal,Hamid Optimization Pitching moment Transonic airfoils Adjoint equations Euler equations |
title_short |
Optimization of Airfoils for Minimum Pitching Moment and Compressibility Drag Coefficients |
title_full |
Optimization of Airfoils for Minimum Pitching Moment and Compressibility Drag Coefficients |
title_fullStr |
Optimization of Airfoils for Minimum Pitching Moment and Compressibility Drag Coefficients |
title_full_unstemmed |
Optimization of Airfoils for Minimum Pitching Moment and Compressibility Drag Coefficients |
title_sort |
Optimization of Airfoils for Minimum Pitching Moment and Compressibility Drag Coefficients |
author |
Farrokhfal,Hamid |
author_facet |
Farrokhfal,Hamid Pishevar,Ahmad Reza |
author_role |
author |
author2 |
Pishevar,Ahmad Reza |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Farrokhfal,Hamid Pishevar,Ahmad Reza |
dc.subject.por.fl_str_mv |
Optimization Pitching moment Transonic airfoils Adjoint equations Euler equations |
topic |
Optimization Pitching moment Transonic airfoils Adjoint equations Euler equations |
description |
ABSTRACT: This paper concerns a numerical optimization method for designing airfoils based on adjoint method. The goal of present work is to reduce the compressibility drag or pitching moment of transonic airfoils without compromising on the lift coefficient. A new cost function based on this requirement is defined and the corresponding adjoint equations are discussed in details. At the end, by demonstrating some numerical results, we show that this technique is capable of converging to the optimum design point corresponding to the initial geometry of the airfoil. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-01 |
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=S2175-91462014000400395 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462014000400395 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5028/jatm.v6i4.403 |
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.6 n.4 2014 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 |
_version_ |
1754732531192692736 |