图7. 绕NACA66射流水翼非定常云状空穴结构演化过程 (空穴含汽率$\alpha _{\rm v} >0.15$,$T'_{\rm cycle} = 82.5$ ms)
Fig. 7. The numerically predicted vapor fraction ($\alpha _{\rm v} >0.15$) of cavitation pattern around a NACA66 hydrofoil with jet flow ($T'_{\rm cycle} = 82.5$ ms)