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- Title
Liquid‐liquid two‐phase flow patterns in a new helical microchannel device.
- Authors
Cao, Yan; Li, Jun; Jin, Yang; Luo, Jianhong; Chen, Ming; Wang, Yubin
- Abstract
Flow patterns of liquid‐liquid two‐phase fluids in a new helical microchannel device were presented in this paper. Three conventional systems were considered: kerosene‐water, n‐butyl acetate‐water, and butanol‐water. Six different flow patterns, slug flow, continuous parallel flow, discontinuous deformation parallel flow, discontinuous deformation parallel‐droplet flow, droplet‐slug flow, and filiform‐droplet flow, were observed. The influence of interfacial tension, microchannel structure, and rotation rate on two‐phase flow patterns were studied, and a universal flow pattern map was presented and discussed. The systems without mass transfer (0.1 g/g (10 %) tri‐n‐butyl phosphate (TBP)‐water, 0.2 g/g (20 %) TBP‐water, and 0.8 g/g (80 %) TBP‐water) and the system with mass transfer (0.8 g/g (80 %) TBP‐0.62 g/g (62 %) H3PO4) were used to verify the validity of the proposed universal flow pattern map in predicting flow patterns. The results showed that the former compared with the latter can be predicted more accurately by the universal flow pattern map.
- Subjects
TWO-phase flow; DEFORMATIONS (Mechanics); TEXTURE mapping; MASS transfer; INTERFACIAL tension
- Publication
Canadian Journal of Chemical Engineering, 2019, Vol 97, Issue 12, p3175
- ISSN
0008-4034
- Publication type
Article
- DOI
10.1002/cjce.23583