Scaling of the bubble/slug length of Taylor flow in a meandering microchannel

Qianqing Liang; Xuehu Ma; Kai Wang; Jiang Chun; Zhong Lan; Tingting Hao; Yaxiong Wang

doi:10.1016/j.cjche.2018.12.008

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Scaling of the bubble/slug length of Taylor flow in a meandering microchannel

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- Scaling of the bubble/slug length of Taylor flow in a meandering microchannel
- Chinese Journal of Chemical Engineering Vol. 27, Issue 11, Pages: 2615-2625(2019)
- Affiliations：
  
  1. Liaoning Key Laboratory of Clean Utilization of Chemical Resources, Institute of Chemical Engineering, Dalian University of Technology,Dalian,China,11624
  2. School of Chemical Engineering, Inner Mongolia University of Science & Technology,Inner Mongolia,Baotou,China,014010
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.12.008
  CLC：
- Published：2019
- Accepted：
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Qianqing Liang, Xuehu Ma, Kai Wang, Jiang Chun, Zhong Lan, Tingting Hao, Yaxiong Wang. Scaling of the bubble/slug length of Taylor flow in a meandering microchannel[J]. Chinese Journal of Chemical Engineering, 2019, 27(11): 2615-2625.
DOI：

Qianqing Liang, Xuehu Ma, Kai Wang, Jiang Chun, Zhong Lan, Tingting Hao, Yaxiong Wang. Scaling of the bubble/slug length of Taylor flow in a meandering microchannel[J]. Chinese Journal of Chemical Engineering, 2019, 27(11): 2615-2625. DOI： 10.1016/j.cjche.2018.12.008.

摘要

Abstract

In order to reduce or avoid the fluctuations from interface breakup

a meandering microchannel with curved multi-bends (44 turns) is fabricated

and investigations of scaling bubble/slug length in Taylor flow in a rectangular meandering microchannel are systematically conducted. Based on considerable experimental data

quantitative analyses for the influences of two important characteristic times

liquid phase physical properties and aspect ratio are made on the prediction criteria for the bubble/slug length of Taylor flow in a meandering microchannel. A simple principle is suggested to predict the bubble formation period by using the information of Rayleigh time and capillary time for six gas-liquid systems with average deviation of 10.96%. Considering physical properties of the liquid phase and cross-section configuration of the rectangular mcirochannel

revised scaling laws for bubble length are established by introducing

and

W/h

whether for the squeezing-driven or shearing-driven of bubble break. In addition

a simple principle in terms of Garstecki-type model and bubble formation period is set-up to predict slug lengths. A total of 107 sets of experimental data are correlat

ed with the meandering microchannel and operating range:0.001

0.05

0.06

9.0

460 using the bubble/slug length prediction equation from current work. The average deviation between the correlated data and the experimental data for bubble length and slug length is about 9.42% and 9.95%

respectively.

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Related Institution

Department of Mechanical Engineering, The University of Danang-University of Science and Technology, 54 Nguyen Luong Bang Street, Danang City 550000, Viet Nam

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