图6. 一个典型周期内绕原始水翼空化脱落的标识码角($\alpha_{\rm V}=0.9$等值面及压力云图分布) ($\sigma =0.829$, $\alpha =8^\circ$, $Re=5.07\times 10^{5}$)
Fig.6. Angle-view of cavity shedding pattern (iso-surface of $\alpha_{\rm V}=0.9$) for $\sigma =0.829$, $\alpha =8^\circ$ and $Re=5.07\times 10^{5}$ during a typical cycle of original hydrofoil