Analysis of a vertical-axis wind turbine\'s natural frequency with different rotating speeds was also carried out,the Campbell diagram was drawn,and the wind turbine\'s critical rotating speed was calculated to judge the turbine\'s safety. 对某垂直轴风力机进行不同转速下的固有频率分析,绘制Campb...
Effect of surface roughness and blade material on the performance of a stationary Savonius wind turbine under different operating conditions The Savonius wind turbine is a vertical-axis wind turbine invented in 1930s consisting of a cylindrical drum with semi-circular blades attached to the drum......