Description: This book is an exposition of the derivation and use of equations of motion for two-phase flow. These flows include bubbly liquids and particle-fluid mixtures. The approach is to derive the equations of motion using ensemble averaging, and to compare them with those derived from control volume methods. Closure for dispersed flows is discussed, and some fundamental solutions are given. The book is intended for researchers in the field, and for advanced graduate students. The work focuses on the fundamental aspects of two-phase flow, and is intended to give the reader a background for understanding the dynamics as well as a system of equations that can be used in predictions of the behavior of dispersed two-phase flows. The exposition in terms of ensemble averaging is new, and combining it with modern continuum mechanics concepts makes this book unique.

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