Diseño de un perfil aerodinámico para bajos números de Reynolds mediante herramientas computacionales.

Abstract

This work shows the results obtained for the design of an aerodynamic profile that maximi zes the relationship between the lift and drag coefficients. For which a systematic procedure of high precision parameterization and optimization for an aerodynamic profile was carried out in order to improve its aerodynamic performance. The Bezier curve was the technique used for the parameterization of the aerodynamic profile by assigning the coordinates of the control points that are set at the beginning of the process to later find the geometry of the profile and then they were optimized using the direct search method implemented with the software to ensure the accuracy of fit. Then, using the Xfoil software, the aerodynamic performance curves are determined until a profile with a greater relationship between lift and drag is found. The result obtained of the airfoil lift / drag ratio increases uniformly under different angles of attack compared to the E387 and UMY02-T01-26 profiles by 30 % ∼ 40 % for Re = 5 × 105 . After a detailed comparison it was determined that the profile created is suitable for low Reynolds number wind turbines due to its high lift coefficient and aerodynamic efficiency.