マグナス風車用回転円柱に取り付けたフィンが揚力に及ぼす影響

抄録

Magnus wind turbine is wind turbine that uses Magnus effect to generate electricity. Magnus wind turbines are unique wind turbine systems that rotate with cylinders instead of using the more common propeller-type blades. In a previous study, it was confirmed that the vortex behavior produced by the interaction between the freestream and the fin was significantly related to lift generation. However, many parameters such as the fin shape and the number of fins have room for improvement. In this study, in order to investigate relationship between fluid force and number of fins, the rotation cylinders with two straight fins and three straight fins are compared. As a result, the lift force of the rotating cylinder with three straight fins increased under the low peripheral speed ratio. However, the drag force increased, too. So, the lift drag ratio of the rotating cylinder with two straight fins and that with three fins ware almost the same for a part.