Numerical and experimental transition results evaluation for a morphing wing and aileron system. (12th April 2018)

• Record Type: Journal Article
• Authors: Botez, R.M.; Koreanschi, A.; Gabor, O.S.; Tondji, Y.; Guezguez, M.; Kammegne, J.T.; Grigorie, L.T.; Sandu, D.; Mebarki, Y.; Mamou, M.; Amoroso, F.; Pecora, R.; Lecce, L.; Amendola, G.; Dimino, I.; Concilio, A.
• Is Part Of: Aeronautical journal. Volume 122:Number 1251(2018)
• Page Start: 747
• Page End: 784
• Publication Date: 2018-04-12
• Subjects: aerodynamics, -- Morphing Wing Tip, -- Genetic Optimization Algorithm, -- Flow Transition, -- Drag Coefficient Reduction, -- Wind Tunnel Tests, -- Morphing Aileron Classification Description: Aerodynamics, -- Aeroelasticity, -- Avionics and Systems, -- Computational Fluid Dynamics, -- Experimental Fluid Dynamics; Aeronautics -- Periodicals; 629.1305
• DOI: 10.1017/aer.2018.15
• Languages: English
• ISSNs: 0001-9240

Abstract

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.