Aerodynamic Analysis with Athena Vortex Lattice. Budziak, K. Ph.D. Thesis, Hamburg University of Applied Sciences, 2015. abstract bibtex 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 λ. The Oswald factor was calculated as a function f(λ) in the same way as shown by HOERNER. Compared to HOERNER'S function, the error never exceed 7,5 %. Surprisingly, the function f(λ) was not independent of aspect ratio, as could be assumed from HOERNER. Variations of f(λ) 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 cal-culated. An equation, generally used in the literature, describes the box wing'
@phdthesis{budziak_aerodynamic_2015,
title = {Aerodynamic {Analysis} with {Athena} {Vortex} {Lattice}},
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 λ. The Oswald factor was calculated as a function f(λ) in the same way as shown by HOERNER. Compared to HOERNER'S function, the error never exceed 7,5 \%. Surprisingly, the function f(λ) was not independent of aspect ratio, as could be assumed from HOERNER. Variations of f(λ) 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 cal-culated. An equation, generally used in the literature, describes the box wing'},
school = {Hamburg University of Applied Sciences},
author = {Budziak, Kinga},
year = {2015},
keywords = {DIN, Diplomarbeit, Dissertation, Doktorarbeit, Microsoft, Norm, Studienarbeit, Word},
}
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