Slug bubble deformation and its influence on bubble breakup dynamics in microchannel

Yingjie Fei; Chunying Zhu; Taotao Fu; Xiqun Gao; Youguang Ma

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Slug bubble deformation and its influence on bubble breakup dynamics in microchannel

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

- Slug bubble deformation and its influence on bubble breakup dynamics in microchannel
- Slug bubble deformation and its influence on bubble breakup dynamics in microchannel
- 中国化学工程学报（英文版） 2022年50卷第10期页码：66-74
- Affiliations：
  
  1. State Key Laboratory of Chemical Engineering, Tianjin University,Tianjin,China,300072
  2. Yifang Industry Corporation, Liaoyang Petrochemical Fiber Company,Liaoyang,China,111003
- Author bio：
- Funds：
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- 纸质出版：2022
- Accepted：
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Yingjie Fei, Chunying Zhu, Taotao Fu, 等. Slug bubble deformation and its influence on bubble breakup dynamics in microchannel[J]. 中国化学工程学报（英文版）, 2022,50(10):66-74.

Yingjie Fei, Chunying Zhu, Taotao Fu, Xiqun Gao, Youguang Ma. Slug bubble deformation and its influence on bubble breakup dynamics in microchannel[J]. Chinese Journal of Chemical Engineering, 2022, 50(10): 66-74.
Yingjie Fei, Chunying Zhu, Taotao Fu, 等. Slug bubble deformation and its influence on bubble breakup dynamics in microchannel[J]. 中国化学工程学报（英文版）, 2022,50(10):66-74. DOI：

Yingjie Fei, Chunying Zhu, Taotao Fu, Xiqun Gao, Youguang Ma. Slug bubble deformation and its influence on bubble breakup dynamics in microchannel[J]. Chinese Journal of Chemical Engineering, 2022, 50(10): 66-74. DOI：

摘要

Abstract

The deformation of moving slug bubbles and its influence on the bubble breakup dynamics in microchannel were studied. Three bubble morphologies were found in the experiment: slug

dumbbell and grenade shapes. The viscosity effect of continuous phase aggravates the velocity difference between the fluid near the wall and the bubble

resulting in that the continuous phase near the bubble head flows towards and squeezes the bubble tail

which causes the deformation of bubbles. Moreover

the experimental results show that the deformation of bubbles could significantly prolong the bubble breakup period at the downstream Y-junction. There exists the critical capillary number

for the asymmetric breakup of grenade bubbles

increases with the rise of flow rate and viscosity of the continuous phase.

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