Aerodynamic Analysis with Athena Vortex Lattice (AVL)

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dc.contributor.advisor Scholz, Dieter Budziak, Kinga ger 2017-12-14T15:55:32Z 2017-12-14T15:55:32Z 2015
dc.identifier.citation Budziak, Kinga: Aerodynamic Analysis with Athena Vortex Lattice (AVL). Hamburg : Aircraft Design and Systems Group (AERO), Department of Automotive and Aeronautical Engineering, Hamburg University of Applied Sciences, 2015. 72 S.
dc.description.abstract This project evaluates the sutability and practicality of the program Athena Vortex Lattice (AVL) by Mark Drela. A short user guide was written to make it easier (especially for stu-dents) to get started with the program AVL. AVL was applied to calculate the induced drag and the Oswald factor. In a first task, AVL was used to calculate simple wings of different aspect ratio A and taper ratio lambda. The Oswald factor was calculated as a function f(lambda) in the same way as shown by HOERNER. Compared to HOERNER's function, the error never exceed 7.5%. Surprisingly, the function f(lambda) was not independent of aspect ratio, as could be assumed from HOERNER. Variations of f(lambda) with aspect ratio were studied and general results found. In a second task, the box wing was investigated. Box wings of different h/b ratio: 0.31, 0.62 and 0.93 were calculated in AVL. The induced drag and Oswald factor in all these cases was calculated. An equation, generally used in the literature, describes the box wing's Oswald factor with parameters k1, k2, k3 and k4. These parameters were found from results obtained with AVL by means of the Excel Solver. In this way the curve k = f(h/b) was ploted. The curve was compared with curves with various theories and experiments conducted prior by other students. The curve built based on AVL fits very well with the curve from HOERNER, PRANDTL and a second experiment made in the wind tunnel at HAW Hamburg. ger
dc.language.iso eng ger
dc.publisher Hamburg : Aircraft Design and Systems Group (AERO), Department of Automotive and Aeronautical Engineering, Hamburg University of Applied Sciences
dc.rights CC BY-NC-SA 4.0 ger
dc.rights.uri ger
dc.subject AVL eng
dc.subject VLM eng
dc.subject drag eng
dc.subject induced drag eng
dc.subject Oswald factor eng
dc.subject box wing eng
dc.subject aircraft eng
dc.subject Widerstand ger
dc.subject induzierter Widerstand ger
dc.subject Oswald Faktor ger
dc.subject Flugzeug ger
dc.subject.classification Luftfahrzeug ger
dc.subject.ddc 620 | Ingenieurwissenschaften und Maschinenbau ger
dc.subject.ddc 629,1 | Luft- und Raumfahrttechnik ger
dc.title Aerodynamic Analysis with Athena Vortex Lattice (AVL) ger
dc.type book ger
dc.type Text ger
dc.description.version publishedVersion ger
tib.accessRights frei zug�nglich ger

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