Emulsification process in high-efficiency vortex (HEV) mixer is studied numerically. The two-phase flow is modelled using a multi-phase Eulerian approach, while the droplets size distribution is calculated by our recently-developed adaptive multiple size-group (A-MuSiG) method. The CFD allows for a more detailed analysis of the emulsification process: the baffles, installed at the mixer's walls, generate large-scale longitudinal vortices enhancing mixing in the transversal plane; most of the breakup occurs near the wall, while the vortices ensure transport of the disperse phase to and out of the wall. Intensity of the turbulence and the droplets size distribution were found to be in good agreement with the experimental data.

数值研究了高效涡旋混合器中的乳化过程。使用多相欧拉方法对两相流进行建模，而液滴尺寸的分布是通过我们最近开发的自适应多尺寸组（A-MuSiG）方法计算的。CFD可以对乳化过程进行更详细的分析：安装在搅拌机壁上的折流板会产生大型纵向涡流，从而增强横向平面上的混合；大部分破裂发生在壁附近，而旋涡确保分散相向壁的出入。发现湍流强度和液滴尺寸分布与实验数据良好吻合。