Aerodynamic Characteristics of a Single Airfoil for Vertical Axis Wind Turbine Blades and Performance Prediction of Wind Turbines

The design of wind turbines requires a deep insight into their complex aerodynamics, such as dynamic stall single airfoil and flow vortices. calculation the aerodynamic forces on turbine blade at different angles attack (AOAs) is fundamental task in blades. accurate efficient (lift drag) prediction an are challenging tasks. Computational fluid dynamics (CFD) able to provide better understanding flows induced by rotation A numerical simulation carried out determine characteristics wide range conditions. Reynolds-averaged Navier–Stokes (RANS) equations large-eddy (LES) results over NACA0012 presented AOAs from low lift through stall. Due symmetrical nature airfoils, also reduce computational cost, RANS performed 2D domain. However, 3D domain used for LES calculations with periodical boundary conditions spanwise direction. obtained verified validated against experimental data previous works. comparisons demonstrate that model considerably overpredicts drag post-stall because not reproduce vorticity diffusion formation vortex. offer good agreement measurements.