In recent years, computational fluid dynamics (CFD) has become a valuable tool for the design of extraction processes. CFD simulations have been combined with population balances to account for coalescence and breakage. In this work, another approach to account for drop interactions is shown, namely, the incompressible Cahn‐Hilliard/Navier‐Stokes equations. To apply the Cahn‐Hilliard equations, they have to be combined with a thermodynamic model. Here, a Koningsveld‐Kleintjens approach is used to account for the mixing gap of the binary mixture. The suggested method was applied to analyze drops in a shear field and to investigate drop coalescence.

中文翻译：

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流体模拟支持的萃取过程设计：一种改进当前模型的方法

近年来，计算流体力学（CFD）已成为设计萃取过程的重要工具。CFD模拟已与总体平衡相结合，以解决合并和断裂问题。在这项工作中，显示了解决液滴相互作用的另一种方法，即不可压缩的Cahn-Hilliard / Navier-Stokes方程。要应用Cahn-Hilliard方程，必须将它们与热力学模型结合起来。在这里，使用Koningsveld-Kleintjens方法来解决二元混合物的混合间隙。该建议的方法用于分析剪切场中的液滴并研究液滴的聚结。