This paper briefly reviews the status of knowledge of breakup and coalescence of fluid volumes, topological transitions that occur frequently in liquid/liquid and liquid/gas systems. Although many studies have been performed on both breakup and coalescence, significant questions remain unanswered concerning the dynamics of each process. A key difficulty is that, in most applications, die driving flow scales are macroscopic but the breakup or coalescence transition scales are microscopic such that non-continuum or molecular effects can play a role. A list of basic issues related to breakup and coalescence is given. Then, suggestions are made for experimental and computational research strategies that can address these issues.
|Original language||English (US)|
|Number of pages||8|
|Journal||Multiphase Science and Technology|
|State||Published - Dec 1 2003|