Yaw dynamics and tail fin design for small, horizontal-axis wind turbines

Paul Fraser

Small, horizontal-axis wind turbines typically use a ‘free yaw’ arrangement with a tail fin to keep the turbine rotor pointing into the wind. Through simulation and experimentation, this research project aims to improve our understanding of the flow of air in the vicinity of the tail fin and the effect of different tail fin sizes, shapes and configurations. The outcomes of this research will assist future engineers to create more effective tail fin designs, meaning small wind turbines can generate more power more of the time.