縦渦駆動円柱翼風車の動力特性に及ぼす翼間距離の影響

抄録

The cylinder blade wind turbine is driven by longitudinal vortex generated near the intersection of the cylindrical blades and the wake plate. In this study, the effect of blade pitch on steady lift force was examined through fluid analysis. The lift force calculated through fluid analysis indicated that reducing the blade pitch decreases the lift force per blade. While increasing the number of blades enhances the overall performance of the wind turbine, once the blade pitch exceeds a certain threshold, the driving force decreases. Visualization of the flow field revealed that blade pitch affects the stable formation of longitudinal vortex, causing fluctuations in lift force.