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- Title
Gas/liquid/liquid three-phase flow patterns and bubble/droplet size laws in a double T-junction microchannel.
- Authors
Wang, Kai; Qin, Kang; Lu, Yangcheng; Luo, Guangsheng; Wang, Tao
- Abstract
The double T-junction microchannel is a classical microstructured chemical device used to generate gas/liquid/liquid three-phase microflows. An experimental study that focused on the three-phase flow phenomena and bubble/droplet generation rules in a double T-junction microchannel was introduced. Based on the published knowledge of gas/liquid and liquid/liquid two-phase microflows, new flow patterns were carefully defined: bubble cutting flow, spontaneous break-up and bubble cutting coupling flow, and bubble/droplet alternate break-up flow. According to the classical correlations of bubble and droplet volumes and their generation frequency ratio, the operating criteria for creating different three-phase flow patterns were established and a model for the dimensionless average bubble and droplet volumes in the three-phase microflows was developed. These various three-phase microflows have great application potential in material science and flow chemistry synthesis. © 2015 American Institute of Chemical Engineers AIChE J, 61: 1722-1734, 2015
- Subjects
GAS flow; DROP size distribution; MICROCHANNEL flow; COUPLING reactions (Chemistry); OXIDATION
- Publication
AIChE Journal, 2015, Vol 61, Issue 5, p1722
- ISSN
0001-1541
- Publication type
Article
- DOI
10.1002/aic.14758