Motion Behaviors of Two Ascending Bubbles in a Wide Range of Viscous Liquid

Foaming devolatilization is a common phenomenon in a process of viscous solution. Bubble growth and motion behaviors depends on the flow conditions and the properties of liquid phase and that is closely related to heat and mass transfer efficiency in devolatilization process. Herein, experimental st...

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Bibliographic Details
Published in:Journal of physics. Conference series 2023-10, Vol.2610 (1), p.12006
Main Authors: Yuan, Wenxu, Lin, Wenbo, Chen, Shichang
Format: Article
Language:English
Subjects:
bubble behaviors
Bubbles
Devolatilization
Liquid phases
Mass transfer
numerical simulation
Physics
viscous fluid
Viscous fluids
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Summary:Foaming devolatilization is a common phenomenon in a process of viscous solution. Bubble growth and motion behaviors depends on the flow conditions and the properties of liquid phase and that is closely related to heat and mass transfer efficiency in devolatilization process. Herein, experimental study of two ascending bubbles in a wide range of viscous fluid were conducted to achieve an understanding of the formation, coalescence and escape. As a supplement and verification, the motion behaviors rising bubbles were also investigated numerically. Results showed that the first bubble generated a tail vortex to affect the next bubble entering the region. The escape time also increased from 0.3 s to 65 s as the fluid viscosity charged from 0.05. Pa · s to 447 Pa · s , and the bubble broke and it could not formed completely with a high viscous fluid in large rate. It was expected the experimental escape time of bubble in different flow rate was in good agreement with the numerical results.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2610/1/012006