Liang-Shih Fan & Katsumi Tsuchiya 
Bubble Wake Dynamics in Liquids and Liquid-Solid Suspensions [PDF ebook] 

This book is devoted to a fundamental understanding of the fluid dynamic nature of a bubble wake, more specifically the primary wake, in liquids and liquid-solid suspensions, an dto the role it plays in various important flow phenomena of multiphase systems. Examples of these phenomena are liquid/solids mixing, bubble coalescence and disintergration, particle entrainment to the freeboard, and bed contraction.