Certain Properties of Entropy in Critical Regimes of Two-Phase Flows.

Entropy is a key notion in the analysis of properties of mass systems. This notion was first formulated in thermodynamics and then expanded to gas systems. In the previous paper, the author has formulated the notion of entropy for two-phase flows. The analysis of properties of this kind of entropy made it possible to formulate the conditions of invariance of the behavior of narrow-size-class particles in a two-phase flow. In addition, this analysis has revealed a universal dimensionless parameter of affinization of separation curves, which makes it possible to control the process of bulk materials separation into fractions by particle sizes and densities. The use of this parameter will enable solving a number of challenging problems related to specific technological processes. [ABSTRACT FROM AUTHOR]