Rotors of Vertical-Axial Wind Turbines Assembled in Bearings and Aerodynamic Characteristics of a Blade with Unclosed Wing Profile

Abstract In world practice, traditional blades used in high-speed wind turbines, both horizontal-axial and vertical-axial, have a wing-shaped profile. However, for with such profile fairly narrow range of operating values the angle attack incoming air flow low value moment pulling from place. As vertical-axial self-starting rotor wing is completely absent additional devices are needed to start into operation. order ensure operation turbine at high speeds, new shape blade was developed, called non-closed The concept development that should configuration which force involved beginning movement, then, establishing lifting would arise, acquires prevailing character mode. article presents results experimental studies aerodynamic characteristics developed blades. One obtained determine effect thickness on subcritical angles differences between nature changes coefficients Studies model confirmed presence its operability even speeds.