THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

External Links

online first only

The movement and shape change characteristics of a bubble passing through a liquid-liquid interface

ABSTRACT
In order to study the movement and shape change characteristic of bubble when passing through the interface of two kinds of liquids with different viscosity, the free rising process of a single bubble in static stratified liquids was numerically simulated with the volume of fluid (VOF) method. The results show that, when the initial height of bubble rising is the same, the rising velocity, deformation increase with the increase of bubble radius. When the maximum intensity of the vortex in the bubble is distributed at the top of the bubble, the top of the left and right sides and the bottom of the left and right sides, the bubble shape is spherical, ellipsoid and spherical cap shape respectively. At different initial heights, the bubble trajectory shows three different shapes -linear, spiral and C-shaped. The relationship between the bubble aspect ratio and rising height is predicted when different radius bubble passing through the interface. The amount of liquid B(lower layer) carried by the bubble increases with the increase of the bubble's initial radius, and the amount of liquid carried by bubbles in C-shaped trajectory is higher than that in spiral trajectory.
KEYWORDS
PAPER SUBMITTED: 2022-03-07
PAPER REVISED: 2022-07-08
PAPER ACCEPTED: 2022-07-25
PUBLISHED ONLINE: 2022-09-10
DOI REFERENCE: https://doi.org/10.2298/TSCI220307123X
REFERENCES
  1. Liu,Y., et al.,A Review of Physical and Numerical Approaches for the Study of Gas Stirring in Ladle Metallurgy, Metall. Mater. Trans. B.,50(2019), pp. 555 577.
  2. Li, T., et al., Numerical investigation of an underwater explosion bubble based on FVM and VOF, Appl. Ocean Res., 74 (2018), 1, pp. 49 58.
  3. Abbassi, W., et al., Study of the rise of a single/multiple bubbles in quiescent liquids using the VOF method, J. Braz. Soc. Mech. Sci. Eng., 41 (2019), 6, pp. 1678 5878.
  4. Grave, M., et al. A new convected level set method for gas bubble dynamics,Comput. Fluids, 209 (2020), pp. 104667.
  5. Shu, S., et al., GPU accelerated transient lattice Boltzmann simulation of bubble column reactors, Chem. Eng. Sci., 214 (2020), pp. 115436.
  6. Li, M., et al., An axisymmetric multiphase SPH model for the simulation of rising bubble, Comput. Methods Appl. Mech. Engrg., 336 (2020), pp. 113039.
  7. Hua, J.,et al., Numerical simulation of bubble rising in viscous liquid, J. Comput. Phys., 222 (2007), 2, pp. 769-795.
  8. Dong, C.H., et al., Simulation on mass transfer at immiscible liquid interface entrained by single bubble using particle method,Nucl. Eng. Technol., 52(2020), 6, pp. 1172 1179.
  9. Liu, Z.L., et al., Study of bubble induced flow structure using PIV, Chem. Eng. Sci., 60 (2005) 13, pp. 3537 3552.
  10. Hashida, M., et al.,Rise velocities of single bubbles in a narrow channel between parallel flat plates, Int. J. Multiphase Flow., 111(2019), pp. 285 293.
  11. Li, X. et al., Analysis of deformation and internal flow patterns for rising single bubbles in different liquids, Chinese J. Chem. Eng., 27(2019), 4, pp. 745 758.
  12. Garner, F.H., et al., Circulation inside gas bubbles, Chem. Eng. Sci., 3(1954), 1, pp. 1 11.
  13. Park, S.H., et al., A Simple Parameterization for the Rising Velocity of Bubbles in a Liquid Pool, Nucl. Eng. Tech., 49(2017), 4, pp. 692 699.
  14. Chen, G., et al. Study on the Bubble Growth and Departure with A Lattice Boltzmann Method,China Ocean Eng., 34 (2020), 1, pp. 69 79.
  15. Sepahi, F., et al. The effect of buoyancy driven convection on the growth and dissolution of bubbles on electrodes,Electrochim. Acta, 403 (2022), pp. 139616.
  16. Higuera, F. J., A model of the growth of hydrogen bubbles in the electrolysis of water, J. Fluid Mech., 927 (2021), pp. A33.
  17. Szekely, J., Mathematical model for heat or mass transfer at the bubble stirred interface of two immiscible liquids, Int. J. Heat Mass Transf., 6 (1963), 5, pp. 417 422.
  18. Greene, G.A., et al., Onset of entrainment between immiscible liquid layers due to rising gas bubbles, Int. J. Heat Mass Transf., 31 (1988), 6, pp. 1309 1317.
  19. Yang,P.Y., et al., Experimental study on the influence for stirring effect of the bubbles deformation through two phases in top blowing bath, Chem. Ind. Eng. Prog., 33(2014), 3, pp. 617 622.
  20. Natsui, S.,et al., SPH simulations of the behavior of the interface between two immiscible liquid stirred by the movement of a gas bubble, Chem. Eng. Sci., 141(2016), 1, pp. 342 355.
  21. Natsui, S., et al., Stable mesh free moving particle semi implicit method for direct analysis of gas liquid two phase flow, Chem. Eng. Sci., 111(2014), 1, pp. 286 298.
  22. Natsui, S., et al., Multiphase Particle Simulation of Gas Bubble Passing Through Liquid/Liquid Interfaces, Mater. Trans. 55(2014), 11, pp. 1707 1715.
  23. Kochi, N., et al., Numerical Simulation on Penetration Stage of a Rising Bubble through an Oil/Water Interface, ISIJ Int., 51(2011), 6, pp. 1011 1013.
  24. Travis, S.E., et al., Bubble growth inside an evaporating liquid droplet introduced in an immiscible superheated liquid, Int. J. Heat Mass Transf., 127 (2018), pp. 313 321.
  25. Hirt, C.W.,et al., Volume of fluid (VOF) method for the dynamics of free boundaries, J.Comput. Phys. 39 (1981), 1, pp. 201 225.
  26. Issa, R.I., Solution of the implicitly discretised fluid flow equations by operator splitting, J.Comput. Phys., 62(1986), 1, pp. 40 65.