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- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received March 1, 2022
Revised September 14, 2022
Accepted November 6, 2022
- Acknowledgements
- The authors gratefully acknowledge the support of the calculation resource provided by professor Jianguo Yu.
- This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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An investigation on the effect of open hole number and scheme on single-phase flow of a swirl flow bubble generator
Abstract
A swirl flow bubble generator with a unique adjustment scheme was developed to adapt to liquid feed flow
rate variation. However, a study on the scheme and flow field of the bubble generator has not been reported in the literature. Particle image velocimetry and computational fluid dynamics were utilized to explore the flow field and adjustment scheme. The results showed that the standard k- model could more accurately describe the flow pattern than
other turbulence models, and the pressure drop difference between experiments and simulations was less than 6%. A
mathematical expression was established to quantitatively describe the relationship among the pressure drop, open hole
number, and liquid flow rate. The pressure drop was proportional to the feed flow rate or inlet velocity square and
inversely proportional to the power of 1.86 of the open hole number. Interestingly, the pressure drop of different open
hole schemes with the same open hole number of 12 was close to 55 kPa. The spiral-bottom open hole schemes could
provide a higher turbulent dissipation rate for both the vortex chamber and straight pipe section. This work can guide
the bubble generator adjustment and fill the gap in this respect.
Keywords
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