图 1  环形液膜在内外侧气流作用下变形示意图

Figure 1.  Sketch of deformation of ring sheet with inner and outer gas flow

图 2  内侧轴向气液速度比对扰动增长率的影响$ {\overline{\rho }}_{\text{r}}=1.29\times {10}^{-3} $, $ {\overline{r}}_{\text{i}}=48,{\overline{r}}_{\text{o}}=50 $

Figure 2.  Influence of inner gas-liquid axial velocity ratio on the perturbation growth rate $ {\overline{\rho }}_{\text{r}}=1.29\times {10}^{-3} $, $ {\overline{r}}_{\text{i}}=48,{\overline{r}}_{\text{o}}=50 $

图 3  外侧轴向气液速度比对扰动增长率的影响

Figure 3.  Influence of outer gas-liquid axial velocity ratio on the perturbation growth rate

图 4  内侧气流旋转强度对扰动增长率的影响$ {\overline{\rho }}_{\text{r}}=0.002 $, $ {\overline{u}}_{\text{i}{\textit{z}}}={\overline{u}}_{\text{o}{\textit{z}}}=2.0 $

Figure 4.  Influence of inner gas swirling strength on the perturbation growth rate $ {\overline{\rho }}_{\text{r}}=0.002 $, $ {\overline{u}}_{\text{i}{\textit{z}}}={\overline{u}}_{\text{o}{\textit{z}}}=2.0 $

图 5  内侧气流旋转对扰动增长率及主导波数的影响

Figure 5.  Influence of inner gas swirling on the perturbation growth rate and dominant wavenumber

图 6  外侧气流旋转对扰动增长率及主导波数的影响

Figure 6.  Influence of outer gas swirling on the perturbation growth rate and dominant wavenumber

图 7  液膜旋转对扰动增长率及主导波数的影响

Figure 7.  Influence of liquid swirling on the perturbation growth rate and dominant wavenumber

图 8  内侧周向扰动模态对扰动增长率及主导波数的影响

Figure 8.  Influence of inner circumferential perturbation mode on the perturbation growth rate and dominant wavenumber

图 9  外侧周向扰动模态对扰动增长率及主导波数的影响

Figure 9.  Influence of outer circumferential perturbation mode on the perturbation growth rate and dominant wavenumber

图 10  液膜周向模态对扰动增长率及主导波数的影响

Figure 10.  Influence of liquid circumferential mode on the perturbation growth rate and dominant wavenumber

图 11  液膜及内侧气流旋转强度对扰动增长率影响

Figure 11.  Influence of swirling strength of liquid and inner gas on the perturbation growth rate

图 12  内外侧高速气流条件气动雾化过程模拟

Figure 12.  Simulations of airblast atomization under high velocity conditions of inner and outer gas flows

图 13  跨越液膜厚度的旋转速度大小分布

Figure 13.  Distribution of swirling velocity magnitudes across the liquid sheet thickness

图 14  内外侧高速气流条件连续液膜附近压力分布

Figure 14.  Pressure distribution near the continuous liquid sheet under high velocity conditions of inner and outer gas

图 15  液膜内及内外侧监测点速度频率分布（$ {u}_{\text{g,i}}=23.2 \;\text{m}/\text{s} $）

Figure 15.  Frequency distribution of velocity at monitors inside the liquid film and below and above its interface （$ {u}_{\text{g,i}}=23.2\; \text{m}/\text{s} $）

图 16  液膜内外侧监测点速度频率分布特征, P₁$ （y/{D}_{\text{i}}=1） $, P₃$ （y/{D}_{\text{i}}=1.4） $

Figure 16.  Frequency distribution characteristics of velocity of monitors below and above liquid sheet interface, P₁$ （y/{D}_{\text{i}}=1） $, P₃$ （y/{D}_{\text{i}}=1.4） $

图 17  内外侧高速气流条件扰动增长的线性稳定性分析

Figure 17.  Linear stability analysis of perturbation growth under high velocity conditions of inner and outer gas