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dc.contributor.authorArias Montenegro, Francisco Javier
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.date.accessioned2020-10-16T13:04:58Z
dc.date.available2021-02-18T01:28:26Z
dc.date.issued2020-08-18
dc.identifier.citationArias, F.J. Ferrofluid thin films for aerofoil lift enhancement and delaying flow separation. "Aeronautical Journal", December 2020, vol.124 , núm.1282 , p.1865-1878
dc.identifier.issn00019240
dc.identifier.urihttp://hdl.handle.net/2117/330372
dc.description.abstractIn this work, consideration is given to a novel concept for aerofoil lift enhancement and delaying flow separation. Here, lift enhancement is attained by preventing the growth of the boundary layer through the elimination of the zero-slip condition between the wing surface and the air stream. The concept would simulate all the effects of a moving wall, leading to the appearance of a slip velocity at the gas–fluid interface, including the injection of momentum into the air boundary layer, but with one exception: here there is no moving wall but instead a ferrofluid thin film pumped parallel and attached to the wall by a magnetic field. Utilising a simplified physical model for the velocity profile of the ferrofluid film and based on ferrohydrodynamic stability considerations, an analytical expression for the interfacial velocity is derived. Finally, from the available experimental data on moving walls, the expected lift and angle-of-attack enhancement are found as well as the weight penalty per unit surface area of the wing is estimated. Additional research and development is required to explore the possibilities of using ferrofluid thin films
dc.format.extent14 p.
dc.language.isoeng
dc.publisherCambridge University Press
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Aeronàutica i espai::Aerodinàmica
dc.subject.lcshAerodynamics
dc.subject.lcshAerofoils
dc.subject.otherFlow separation
dc.subject.otherBoundary layer
dc.subject.otherLift enhancement
dc.subject.otherAerodynamics
dc.titleFerrofluid thin films for aerofoil lift enhancement and delaying flow separation
dc.typeArticle
dc.subject.lemacAerodinàmica
dc.subject.lemacSuperfícies de sustentació
dc.identifier.doi10.1017/aer.2020.65
dc.rights.accessOpen Access
local.identifier.drac28773477
dc.description.versionPostprint (author's final draft)
local.citation.authorArias, F.J.
local.citation.publicationNameAeronautical Journal
local.citation.volume124
local.citation.number1282
local.citation.startingPage1865
local.citation.endingPage1878


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