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Optimal leading-edge deflection for flapping airfoil propulsion

2023-09-26Journal article Embargoed access
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dc.contributor.authorCamacho, E. A. R.
dc.contributor.authorSilva, André
dc.contributor.authorMarques, Flávio D.
dc.date.accessioned2023-12-12T10:52:12Z
dc.date.embargo2025-12
dc.date.issued2023-09-26
dc.description.abstractThe aerodynamics of oscillating airfoils are crucial to understanding subjects such as rotor dynamics and bio-inspired flows. Unsteady airfoils have been studied extensively, but there is an overall lack of knowledge regarding newer and more complex kinematics. The present paper builds upon our modified version of the NACA0012 by numerically comparing its way of flapping with the standard flapping that is common in the literature. The comparison is conducted parametrically at a Reynolds number of 104 for two nondimensional amplitudes. Then, using a gradient-based optimization method, we search for pitching amplitudes that maximize the propulsive power and efficiency for both flapping modes. Results indicate that the proposed flapping methodology is more promising than conventional flapping, with thrust increases up to approximately 40%. Furthermore, the proposed mechanism achieves maximum propulsive power with near-optimal efficiency, a common limitation of traditional flapping airfoils.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologia e Conselho Nacional de Desenvolvimento Científico e Tecnológico; Brazilian National Council for Scientific and Technological Development [grant number #306824/2019-1]pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1177/09544100231201553pt_PT
dc.identifier.issn09544100
dc.identifier.urihttp://hdl.handle.net/10400.6/13825
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSAGE Publications Ltdpt_PT
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relationAssociate Laboratory of Energy, Transports and Aerospace.
dc.relationBoundary Layer Control in Plunging and Pitching Airfoils
dc.relation.publisherversionhttps://journals.sagepub.com/doi/abs/10.1177/09544100231201553pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectDynamic curvaturept_PT
dc.subjectFlapping airfoilpt_PT
dc.subjectFlow controlpt_PT
dc.subjectOptimizationpt_PT
dc.subjectPropulsive enhancementpt_PT
dc.subjectBiomimeticspt_PT
dc.subjectOscillating airfoilpt_PT
dc.subjectEdge deflectionspt_PT
dc.subjectFlapping airfoilspt_PT
dc.subjectRotors dynamicspt_PT
dc.subjectRotors dynamicspt_PT
dc.subjectOscillating flowpt_PT
dc.titleOptimal leading-edge deflection for flapping airfoil propulsionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aerospace.
oaire.awardTitleBoundary Layer Control in Plunging and Pitching Airfoils
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50022%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0079%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_CENTRO/2020.04648.BD/PT
oaire.citation.endPage3653pt_PT
oaire.citation.issue16pt_PT
oaire.citation.startPage3640pt_PT
oaire.citation.titleProceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineeringpt_PT
oaire.citation.volume237pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPOR_CENTRO
person.familyNameRodrigues Camacho
person.familyNameResende Rodrigues da Silva
person.familyNameMarques
person.givenNameEmanuel António
person.givenNameAndré
person.givenNameFlávio D.
person.identifierJ-4185-2012
person.identifier1584962
person.identifier.ciencia-id4416-08D8-F83D
person.identifier.ciencia-id8219-4B2B-E1C7
person.identifier.ciencia-id8316-99B9-CBB4
person.identifier.orcid0000-0002-1648-8368
person.identifier.orcid0000-0002-4901-7140
person.identifier.orcid0000-0003-1451-3424
person.identifier.ridF-4698-2012
person.identifier.scopus-author-id11440407500
person.identifier.scopus-author-id7102759984
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctOs direitos do artigo pertencem à editorapt_PT
rcaap.rightsembargoedAccesspt_PT
rcaap.typearticlept_PT
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