Analysis of the vortical flow around a 60 degree delta wing with vortex flap

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dc.contributor.authorSung, Bongzooen
dc.contributor.committeechairMarchman, James F. IIIen
dc.contributor.committeememberSchetz, Joseph A.en
dc.contributor.committeememberGrossman, Bernard M.en
dc.contributor.committeememberNeu, Wayne L.en
dc.contributor.committeememberRutland, L. W. IIen
dc.contributor.departmentAerospace Engineeringen
dc.date.accessioned2014-08-13T14:38:48Zen
dc.date.available2014-08-13T14:38:48Zen
dc.date.issued1985en
dc.description.abstractSubsonic wind tunnel investigations were conducted on a 60° swept, flat plate, delta wing with a leading edge vortex flap. The pressure distributions were measured over a range of angles of attack starting from zero to 40° in 5° interval and flap deflection angles from zero to 45° with 5° increments at a Reynolds number of about 2.14 x 10‘ based on the root chord. The flow visualization experiments were performed from zero degree to the stall angle, with ten different flap deflection angles at the same Reynolds number. The mean flow field was measured at angles of attack l0° and 15° with the flap deflection angles of l0° and 30° at a Reynolds number of about 1.50 x 10°. The experimental results shows that the leading edge vortex flap is an effective means to control the vortex flow over a delta wing. The optimum flap deflection angles were found where the primary vortex was confined to the leading edge vortex flap, thus producing a thrust on the flap. It was found that flap deflection could be used to restore a vortex flow from burst vortex condition.en
dc.description.adminincomplete_metadataen
dc.description.degreePh. D.en
dc.format.extentxv, 243 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/49932en
dc.publisherVirginia Polytechnic Institute and State Universityen
dc.relation.isformatofOCLC# 14544967en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1985.S963en
dc.subject.lcshWind tunnels -- Flow visualizationen
dc.subject.lcshAirplanes -- Wings, Triangularen
dc.subject.lcshAerodynamicsen
dc.titleAnalysis of the vortical flow around a 60 degree delta wing with vortex flapen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineAerospace Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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