Abstract
It is a dream for the human to freely fly in the sky by his/her own power. A human powered airplane has been developed and now we can fly for more than 100 km, while nobody has arrived at the height more than 1 m by a human powered helicopter. Therefore, the realization of a human powered helicopter will be a next dream of the human. The weight reduction is one of the most critical problems to realize a human powered helicopter. However, blades made of light materials are twisted and bended during hover. In the present work, we perform three-dimensional simulation considering with fluid-structure interaction and investigate the wing performance for some cases of initial attack angle. The results show that the optimum initial attack angle is 14 [deg.] and then total lift obtained by the blade is 1.102 kN. This would be sufficient for realizing a human powered helicopter.
