Three dimensional flow analysis by the vortex-lattice method

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dc.contributor.authorRodriguez, Carlos G.en
dc.contributor.departmentAerospace Engineeringen
dc.date.accessioned2014-03-14T21:32:13Zen
dc.date.adate2009-03-24en
dc.date.available2014-03-14T21:32:13Zen
dc.date.issued1990en
dc.date.rdate2009-03-24en
dc.date.sdate2009-03-24en
dc.description.abstractA Vortex-Lattice Method (VLM) has been developed for the analysis of three-dimensional lifting bodies undergoing arbitrary motions. So far, the present method has been applied to thin surfaces in translational motion. Several cases were tested, such as rectangular, delta, sweptback and trapezoidal planforms. Emphasis has been placed on the comparison of the results with available experimental data. Consequently, many of the strengths and limitations of the technique were made apparent. Good agreement has been obtained for the aerodynamic coefficients, with a relatively coarse discretization of the surface. Results are valid as long as there is no separation or vortex breakdown. However, accurate pressure distribution calculations need at least three or four times the number of panels used for aerodynamic coefficients calculations. The method gives a qualitative description of the wake configuration, but unrealistically high velocities are induced near the vortex elements. Work is underway to extend the technique to more general types of bodies and maneuvers.en
dc.description.degreeMaster of Scienceen
dc.format.extentv, 103 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-03242009-040555en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-03242009-040555/en
dc.identifier.urihttp://hdl.handle.net/10919/41759en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1990.R647.pdfen
dc.relation.isformatofOCLC# 22293945en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1990.R647en
dc.subject.lcshFluid dynamics -- Researchen
dc.subject.lcshVortex-motionen
dc.titleThree dimensional flow analysis by the vortex-lattice methoden
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineAerospace Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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