Numerical Investigation of Wind Turbine Wake Characteristics under Different Wind Shear Conditions Using the Actuator Line Model

For the ultra-high-power IEA 22 MW wind turbine, an actuator line model was first developed based on actuator line theory. This model was then integrated into a CFD flow field as a momentum source term for numerical simulation. Simulations were performed under different wind shear conditions to examine how the wind shear exponent affects the wake characteristics and power output of the turbine. The findings of this study provide a scientific foundation for wake modeling of ultra-large wind turbines and optimizing wind farm design.