Abstract
In order to study the behavior and mechanism of the bubble breakup in
Advanced-Flow Reactor (AFR), visualization experimental study was
carried out in a single Corning G1 module. The results show that the
breakup behavior in AFR has a significant regularity at low Reynolds
numbers (Re<1000), which is closely related to the capillary
number Ca and the virtual length l0 of bubbles, and the criterions is
also obtained. Most of bubbles in arc-shaped junction divergence of AFR
are breakup with permanent obstruction (POB), which could be divided
into two stages: squeezing stage and rapid pinch-off stage. The modified
equation obtained in this paper can roughly describe the change of the
bubble neck at the squeezing stage of POB. The research results provide
a theoretical basis for industrial application of AFR and the
development of next-generation reactors.