Computational analysis and validation in wind tunnel of wing-tip devices for unmanned aerial vehicle (UAV)


  • Diego Osorio
  • Emilio Insfran
  • Ms. Ing. J. de Egea
  • Ing. C. Meaurio



UAV, CFD, Wind tunnel validation


The application of UAV systems within the civil and military aeronautical market encouraged the development of options that increase the performance of this type of aircraft. This paper ́s objective is to analyze the aerodynamic behavior of a wing with and without wingtip devices (winglets) for a UAV, through the CFD software Tdyn and wind tunnel tests validation. The lift (Cl) and drag (Cd) coefficients of the wing without winglets were compared to the wing with different curvature winglets at specific angles of attack for maximum Cl/Cd ratio. The results showed that the wing with a winglet can offer an improvement in the Cl/Cd coefficient of 4.5% compared to the wing without any other type of device on the wingtip.


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Biografia do Autor

Diego Osorio

Polytechnic Faculty, National University of Asunción

Emilio Insfran

Polytechnic Faculty, National University of Asunción

Ms. Ing. J. de Egea

Faculty of Engineering, National University of Asunción

Ing. C. Meaurio

Faculty of Engineering, National University of Asunción


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