Reference : Induced Drag Calculations with the Unsteady Vortex Lattice Method for Cambered Wings
Scientific journals : Article
Engineering, computing & technology : Aerospace & aeronautics engineering
Engineering, computing & technology : Aerospace & aeronautics engineering
http://hdl.handle.net/2268/200767
Induced Drag Calculations with the Unsteady Vortex Lattice Method for Cambered Wings
English
Lambert, Thomas mailto [Université de Liège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale >]
Dimitriadis, Grigorios mailto [Université de Liège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale >]
Feb-2017
AIAA Journal
American Institute of Aeronautics and Astronautics
55
2
668-672
Yes (verified by ORBi)
International
0001-1452
1533-385X
Reston
VA
[en] Unsteady vortex lattice method ; induced drag
[en] The Unsteady Vortex Lattice Method (UVLM) is an approach widely used to estimate the aerodynamic loads in unsteady subsonic flows. It is based on modeling the camber surface of a lifting body by means of bound vortex rings. Even though this method has been known and used for several decades, there is little discussion of the modeling of the leading-edge suction in the literature. To address this concern, Simpson et al. [1] presented a comparison of two different ways to model this effect for the case of uncambered airfoils and wings in harmonic pitch or plunge motions. They concluded that the Joukowski method converges significantly faster than the Katz technique as the number of chorwise panels is increased. The present paper is an extension of the study by Simpson et al. to cambered lifting surfaces. It shows that the presence of camber can change radically the convergence performance of the two methods. For cambered wings, the Katz approach converges significantly faster than the Joukowski technique.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/200767
10.2514/1.J055135
http://arc.aiaa.org/doi/10.2514/1.J055135

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