图10. 扣除来流速度的叶尖区域流线计算结果 ($r_{0} = 0.7 c$, $a_{1 } = 0.001$)
Fig. 10. Computational result of streamlines in blade tip region with the wind speed subtracted from the local velocity ($r_{0} = 0.7 c$, $a_{1 } = 0.001$)