An analytical film drainage model and breakup criterion for Taylor bubbles in slug flow in inclined round pipes
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Film_model_IJMF_Answer_CLEAR_v1.pdf
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692.94 KB
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Checksum (MD5)
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Author(s)
Lizarraga-Garcia, Enrique
Buongiorno, Jacopo
Bucci, Mattia
Date Issued
April 2016
Journal
International Journal of Multiphase Flow
Publisher
Elsevier
Citation
Lizarraga-Garcia, E. et al. “An Analytical Film Drainage Model and Breakup Criterion for Taylor Bubbles in Slug Flow in Inclined Round Pipes.” International Journal of Multiphase Flow 84 (September 2016): 46–53 © 2016 Elsevier
Version
Original manuscript
Abstract
The velocity of Taylor bubbles in inclined pipes is reduced if a lubricating liquid film between the bubble and the pipe wall is not present. An analytical model predicting the gravity-driven drainage of the lubricating film is presented in this article. The model is then used to establish a criterion for film breakup: if the thin film would not break up, where tbubble is the bubble’s passage time, and τ is the characteristic film drainage time based on the fluid properties, pipe geometry, and critical film thickness. The model is validated experimentally with Taylor bubbles in inclined pipes (5° to 90°, the latter being vertical) with stagnant liquids (ethanol, methanol, and mixtures of deionized water and methanol). Keywords: Taylor bubble; Slug flow; Film drainage; Film breakup criterion
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
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DOI of Published Version
https://doi.org/10.1016/j.ijmultiphaseflow.2016.03.020
