REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

Preliminary Aerodynamic Computation of

Long Endurance UAV Wing

Abdelwahid Boutemedjet

Military Academy, Belgrade, abdelwahed1954@gmail.com

Marija Samardžić

Military Technical Institute, Belgrade, majasam@ptt.rs

Zoran Rajić

Military Technical Institute, Belgrade, zoran.rajic@vti.vs.rs

Abstract: Wing preliminary aerodynaic computation of a low speed, long endurance unmanned aerial vehicles (UAV ), is formulated as a single objective aerodynamic optimization.During this process,the wing planform parameters are optimized with maximization of endurance .Four design variables from aerodynamics discipline namely taper ratio,aspect ratio,wing loading and wing twist  are taken in concediration.3D wing aerodynamic analysis is performed by the XFLR5 panels method code.In the optimization process ,genetic algorithm is used to perform the optimal solution under defined requirements of preliminary computation.

Keywords: UAV,Wing endurance,Optimization,Genetic algorithm,Panel method.