Interaction of two in-line bubbles of equal size rising in viscous liquid

Zhen Tian; Xi Li; Youwei Cheng; Lijun Wang

doi:10.1016/j.cjche.2019.06.003

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Interaction of two in-line bubbles of equal size rising in viscous liquid

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

- Interaction of two in-line bubbles of equal size rising in viscous liquid
- Chinese Journal of Chemical Engineering Vol. 28, Issue 1, Pages: 54-62(2020)
- Affiliations：
  
  College of Chemical and Biological Engineering, Zhejiang University,Hangzhou,China,310027
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.06.003
  CLC：
- Published：2020
- Accepted：
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Zhen Tian, Xi Li, Youwei Cheng, Lijun Wang. Interaction of two in-line bubbles of equal size rising in viscous liquid[J]. Chinese Journal of Chemical Engineering, 2020, 28(1): 54-62.
DOI：

Zhen Tian, Xi Li, Youwei Cheng, Lijun Wang. Interaction of two in-line bubbles of equal size rising in viscous liquid[J]. Chinese Journal of Chemical Engineering, 2020, 28(1): 54-62. DOI： 10.1016/j.cjche.2019.06.003.

摘要

Abstract

The interaction of bubbles is the key to understand gas-liquid bubbling flow. Two-dimensional axis-symmetry computational fluid dynamics simulations on the interactive bubbles were performed with VOF method

which was validated by experimental work. It is testified that several different bubble interactive behaviors could be acquired under different conditions. Firstly

for large bubbles (

10 mm)

the trailing bubble rising velocity and aspect ratio have negative correlations with liquid viscosity and surface tension. The influences of viscosity and surface tension on leading bubble are negligible. Secondly

for smaller bubbles (

2 mm)

the results are complicated. The two bubbles tend to move together due to the attractive force by the wake and the potential repulsive force. Especially for high viscous or high surface tension liquid

the bubble pairs undergo several times acceleration and deceleration. In addition

bubble deformation plays an important role during bubble interaction which cannot be neglected.

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