Investigations of aerodynamics of three-bladed combined type wind turbine

Abstract

The field of renewable energy utilized is expanding. For this reason, many researchers in this field have centered on investigating the utilization of sustainable energy and diminishing the utilization of fossil fuels. The VAWTs is one of the sorts of wind turbines that are right now broadly utilized. Utilizing the Darrieus wind turbine, its beginning torque value is little due to the little projected area in contact with the wind stream. To extend this beginning torque, the vane-type blade with a vertical axis of revolution has been installed, which contains movable vans and installed with a three straight- bladed Darrieus airfoil (NACA0012) on the same turning shaft. In this paper, the characteristic of a combined three–blade vane type and three-bladed Darrieus turbine was talked about computationally by utilizing CFD (Fluent) software’ with k-ω turbulence model and commercial accessible solid work 2016. Through present study, the results gotten demonstrate that the beginning torque of the combined wind turbine increases when the blades with even movable vans are installed with the straight -bladed Darrieus wind turbine. Expanding the starting torque of the combined turbine because the wind stream is freely passed without any resistance through the movable vanes that are completely open on the inverse side of the wind direction, leads to an increment within the output power of the turbine compared to the comes about confirmed within the published sources of the vertical axis wind turbine, which has different shapes.