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Deformation characteristics of a single bubble in immiscible fluids
  • +2
  • Jiarui Xu,
  • Xiaohui Zhang,
  • Shan Qing,
  • Ronghua Li,
  • Hua Wang
Jiarui Xu
Kunming University of Science and Technology - Lianhua Campus
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Xiaohui Zhang
Kunming University of Science and Technology - Lianhua Campus
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Shan Qing
Kunming University of Science and Technology - Lianhua Campus
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Ronghua Li
Kunming University of Science and Technology - Lianhua Campus
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Hua Wang
Kunming University of Science and Technology
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Abstract

In order to investigate characteristics of bubble deformation in immiscible fluids, the bubble shape change during the interface and the relationship between aspect ratio(E) and dimensionless number of forces is obtained. A three-dimensional model is established and the free-floating behavior of a single bubble in immiscible fluids is numerically simulated by phase-field method. The simulation results are in good agreement with experimental results. The research shows that, in the lower liquid, the relationship between E and We, Ta, Re is distributed between two intersecting lines. In the upper liquid, the relationship between E and We, Ta, Re is distributed between two parallel lines. Comparing the bubble deformation and the influence of the forces. Compared with gravity, the inertial force plays a leading role in the bubble shape in the lower liquid and upper liquid. Compared with the viscous force, the surface tension dominates the bubble shape in the lower liquid.

Peer review status:UNDER REVIEW

23 Apr 2021Submitted to AIChE Journal
25 Apr 2021Assigned to Editor
25 Apr 2021Submission Checks Completed
28 Apr 2021Reviewer(s) Assigned