S0506-1-2 シャトルコックの空力特性に関する実験研究(スポーツ流体工学(1))

概要

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Characteristic aerodynamic values of badminton shuttlecocks were measured in free-fall conditions and in wind tunnel flows. Drag coefficients obtained in wind tunnel proved to be slightly higher than those in free-fall tests. The cause was supposed to be ascribed to the free rotation of the shuttlecocks during the fall, possibly having changed the surrounding flow field. Normal shuttlecocks having bird feathers were different from those of plastic materials in that the former had slightly higher drag coefficients and had drag gradient against angles of attack compared with nearly zero gradient for the latter. This study has suggested the complicated nature of the shuttlecock flight interactive with the flow field and the resulting forces.
社団法人日本機械学会の論文
2009-09-12