Aerodynamic Shape Optimization of NREL S809 Airfoil for Wind Turbine Blades Using Reynolds-Averaged Navier Stokes Model—Part II

Sustainability has become one of the most significant considerations in everyday work, including energy production. The fast-growing trend wind around world increased demand for efficient and optimized airfoils, which paved way harvesting systems. present manuscript proposes an aerodynamically design well-known existing NREL S809 airfoil performance enhancement blade turbines. An integrated code, based on a genetic algorithm, is developed to optimize asymmetric by class shape transformation (CST) parametric section (PARSEC) parameterization method, analyzing its aerodynamic properties maximizing lift airfoil. in-house MATLAB code further incorporated with XFOIL calculate coefficient lift, drag lift-to-drag ratio at angles attack 0° 6.2° panel technique validated National Renewable Energy Laboratory (NREL) experimental results provided Ohio State University (OSU). On other hand, steady-state CFD analysis performed using Reynolds-averaged Navier–Stokes (RANS) equation K–ω shear stress transport (SST) turbulent model compared data. method shows that CST predicted, increment 11.8% 9.6% ratio, respectively, desirable stability parameters obtained turbine blades. These characteristics significantly improve overall new airfoils. Finally, improved are reported Phase II, III VI HAWT