バドミントンシャトルコック羽根部におけるキャンバーの効果

抄録

An experimental study and a computational study are conducted to understand the aerodynamics of the shuttlecock especially about the effect of the chamber of the blade. The lift, drag, pitching moment coefficient is measured in the experiment. It was found that the chamber of the blade can change the aerodynamic properties. The increase in camber causes increase in lift and a decrease in drag. PIV measurements revealed that this decrease in the drag is related to the decrease in the width of wake which is caused by the flow of outside of the shuttle flows along the chamber. A pressure coefficient calculated by CFD reveal that the each blade work as single blade at low angle of attack. On the other hand, at high angle of attack, not so high lift was observed. It is because the front of the outside of the upper blade is inside of the separation region from the cork.