The Influence of Blade Angle on Aerodynamic Performance of Small Savonius Wind Turbine
Savonius rotor is a typical style of vertical-axis wind turbine （VAWT）. The study on the aerodynamic performance of small Savonius wind turbine influenced by blade angle was presented in the paper. Fluid-solid coupling analysis on the Savonius rotor was carried out based on ANSYS CFX. And the standard k-ε turbulence model was used in the simulation analysis of savonius rotor. The power characteristics were calculated after getting the data about torque and velocity distribution by numerical simulation. And then the relation between torque coefficient and blade angle was obtained by using the analysis results. According to analysis results, got the point and the range that generating the maximum torque and the negative torque. And it can offer a useful reference for the further study on Savonius wind turbine in the future by the analysis of blade angle＇s influence on the turbine characters.
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