On the basis of the space-time conservation element and solution element method and by applying the hybrid particle level-set function, the drop coalescence in a dual-layer vertical channel has been numerically studied. Interactions between the flow field and the drop migration are observed. Main eddies and secondary vortexes induced by the drop coalescence are examined. Deformation and migration of the drop are mainly controlled through interfacial tension and the shear stress gradient. Drop coalescence is related to a viscous dissipation of energy.

中文翻译：

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用CESE方法进行腔流液滴聚结的数值分析。

在时空守恒元和解元方法的基础上，通过应用混合粒子能级设置函数，对双层垂直通道中的液滴聚结进行了数值研究。观察到流场和液滴迁移之间的相互作用。检查了由液滴聚结引起的主要涡流和次要涡旋。液滴的变形和迁移主要通过界面张力和剪切应力梯度来控制。液滴聚结与能量的粘性耗散有关。