The state of the two‐phase system is described by the interfacial curvature distribution. A phenomenological closure model is proposed for the exact (unclosed) equations. Parameters of the model are related to the existing correlations for drop size in stirred flows. If water is dispersed in oil, the curvature has a uni‐modal distribution with a positive mode. When a control parameter, e.g., water volume fraction is increasing, the distribution becomes bi‐modal with both negative and positive values. After a while, the phase inversion occurs, and the distribution becomes uni‐modal with a negative mode. Going in the other direction the phase inversion happens at lower volume fraction of water, i.e., there is an ambivalent region, where both phases might be in the dispersed state. The model implies, that even if the conditions for phase inversion are met, there might be a significant delay before the new morphology is established.

中文翻译：

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界面曲率分布模型与相变

界面曲率分布描述了两相系统的状态。对于精确的（未封闭的）方程，提出了一种现象学的封闭模型。模型的参数与搅拌流中液滴尺寸的现有相关性有关。如果将水分散在油中，则曲率具有正模态的单峰分布。当控制参数（例如水体积分数）增加时，分布将变为具有负值和正值的双峰分布。一段时间后，发生相位反转，并且分布变为具有负模的单模。在另一个方向上，相转化发生在水的体积分数较低的情况下，即存在一个矛盾的区域，在该区域中，两相都可能处于分散状态。该模型暗示，