Wind turbine blades with aerodynamic vortex elements

摘要

A wind turbine blade (16) has a suction side surface (20) and a pressure side surface 922). A plurality of vortex elements (34) are formed on at least one of the suction side or the pressure side surfaces. The vortex elements (34) have a semi-hemispherical crescent shape with a concave wind face (40) and a convex slip face (44), with the wind face and slip face meeting at an arc-shaped ridge (42).