Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 3 3A 2015 07 14 Experimental Validation of Numerical Results of a Göttingen 188 Airfoil Wind Turbine for a 40° Blade Angle 22 26 EN Zied Driss Laboratory of Electro-Mechanic Systems (LASEM), National School of Engineers of Sfax (ENIS), University of Sfax (US), B.P. 1173, Road Soukra, km 3.5, 3038 Sfax, TUNISIA Tarek Chelbi Ahmed Kaffel Mohamed Salah Abid AJME201533A4 10.12691/ajme-3-3A-4 2015 05 20 2015 06 22 2015 07 14 In this paper, an experimental validation of numerical results of a Göttingen 188 airfoil wind turbine has been achieved. For thus, a detailed description of the used wind tunnel and the various manipulations performed with the mentioned turbine are presented. The experimental setup was developed to estimate the velocity profiles and the static torque for a wedging angle of the blade equal to β=40°. In these conditions, we have proved that the static torque presents the maximum value compared with the others tested wedging angles. Our goal is to characterize the aerodynamic structure and to validate the numerical results developed using Computational Fluid Dynamic (CFD) code.