Zhen Tian, Xi Li, Youwei Cheng, 等. Interaction of two in-line bubbles of equal size rising in viscous liquid[J]. 中国化学工程学报(英文版), 2020,28(1):54-62.
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.
Zhen Tian, Xi Li, Youwei Cheng, 等. Interaction of two in-line bubbles of equal size rising in viscous liquid[J]. 中国化学工程学报(英文版), 2020,28(1):54-62.DOI: 10.1016/j.cjche.2019.06.003.
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.
Interaction of two in-line bubbles of equal size rising in viscous liquid
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 (
d
:4
6
8
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 (
d
:1
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.
关键词
Keywords
references
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Modeling bubble column reactor with the volume of fluid approach: Comparison of surface tension models
Multiscale synergistic enhancement mechanism of solid—liquid mixing in multi-shaft stirred reactors under variable-speed operation
Experimental and modeling study of micromixing characteristics in a stirred tank integrated with annular jet flow
CFD investigation in the temperature effect on coal catalytic hydrogasification in the pressurized bubbling fluidized bed
Eulerian-Lagrangian simulation of dispersed liquid flow in turbulent stirred tanks
相关作者
Qi Liu
Zhenghong Luo
Meng Tong
Wang Yu
Tian Yijuan
Qin Shuang
Lin Yuyan
Liu Peiqiao
相关机构
Department of Chemical Engineering, College of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University
School of Chemistry and Chemical Engineering, Chongqing University
Department of Industrial Chemistry “Toso Montanari”, University of Bologna
State Key Laboratory of Coal Mine Disaster Dynamics and Control
Department of Chemical Engineering, Tsinghua University