Portal de Periódicos da CAPES

Numerical and experimental transition results evaluation for a morphing wing and aileron system

2018; Cambridge University Press; Volume: 122; Issue: 1251 Linguagem: Inglês

10.1017/aer.2018.15

2059-6464

Ruxandra Mihaela Botez, Andreea Koreanschi, Oliviu Şugar Gabor, Yvan Tondji, M. Guezguez, J.T. Kammegne, Teodor Lucian Grigorie, Dragos George Sandu, Y. Mébarki, Mahmoud Mamou, Francesco Amoroso, Rosario Pecora, Leonardo Lecce, Gianluca Amendola, Ignazio Dimino, Antonio Concilio,

Aerodynamics and Fluid Dynamics Research

ABSTRACT A new wing-tip concept with morphing upper surface and interchangeable conventional and morphing ailerons was designed, manufactured, bench and wind-tunnel tested. The development of this wing-tip model was performed in the frame of an international CRIAQ project, and the purpose was to demonstrate the wing upper surface and aileron morphing capabilities in improving the wing-tip aerodynamic performances. During numerical optimisation with ‘in-house’ genetic algorithm software, and during wind-tunnel experimental tests, it was demonstrated that the air-flow laminarity over the wing skin was promoted, and the laminar flow was extended with up to 9% of the chord. Drag coefficient reduction of up to 9% was obtained when the morphing aileron was introduced.