Wind turbine bionic blade design and performance analysis.

Abstract With the growing shortage of energy, wind power is receiving an increasing amount of attention worldwide as a clean source of renewable energy. One of the most important components of the wind turbine is the bird-wing-like blade under the working principle. Three kinds of bionic blades are designed by using bionic wing type and configuration based on the good aerodynamic performance of seagull wings, combined with the theory of wind turbine blade design-the blade element theory. Standard blade and aerodynamic performances of bionic blade are evaluated by means of numerical simulation. Under different wind speeds, the results show that the blade torque of the bionic blade of total improved airfoil increases by 10.2%, the bionic blade of partially improved airfoil increases by 14%, and the configuration improved blade increases by 7%. To verify the correctness of the numerical simulation results, we run the bionic blade and establish a corresponding experimental device in an actual experiment. The results of the experiment are consistent with the trend of the numerical simulation. [ABSTRACT FROM AUTHOR]