Definition of Wingtip Devices Shape and Dimensions for a Subsonic Airliner
- Autores: Gueraiche D.1, Popov S.1, Ryzhov Y.1
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Afiliações:
- Moscow Aviation Institute (National Research University)
- Edição: Volume 61, Nº 3 (2018)
- Páginas: 331-339
- Seção: Flight Vehicle Design
- URL: https://journals.rcsi.science/1068-7998/article/view/230574
- DOI: https://doi.org/10.3103/S1068799818030030
- ID: 230574
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Resumo
The results of flow field numerical simulation on the typical wing-body prototype of the modern DLR-F4 airliner under sub- and transonic compressible air flow are presented. Using the DLR-F4 CAD model, the effect of the wingtip end plate area and of the cant angle of a typical Whitcomb winglet is studied. The dependencies of the model lift-to-drag ratio increment on the flat wingtip end plate relative area and on the cant angle of an airfoil Whitcomb winglet are obtained. The concept of an elliptic winglet with a variable cant angle that similar to the winglet used on Airbus A350 is studied. A technique is developed for solving the multi-parameter design optimization task for the Whitcomb winglet, taking the maximum lift-to-drag ratio of the wing as a criterion for optimization.
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Sobre autores
D. Gueraiche
Moscow Aviation Institute (National Research University)
Email: flowmech@mail.ru
Rússia, Volokolamskoe sh. 4, Moscow, 125993
S. Popov
Moscow Aviation Institute (National Research University)
Autor responsável pela correspondência
Email: flowmech@mail.ru
Rússia, Volokolamskoe sh. 4, Moscow, 125993
Yu. Ryzhov
Moscow Aviation Institute (National Research University)
Email: flowmech@mail.ru
Rússia, Volokolamskoe sh. 4, Moscow, 125993