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Multiphase Science and Technology

Published 4 issues per year

ISSN Print: 0276-1459

ISSN Online: 1943-6181

SJR: 0.144 SNIP: 0.256 CiteScore™:: 1.1 H-Index: 24

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INTERFACE TRACKING SIMULATION OF BUBBLES AND DROPS IN COMPLEX GEOMETRIES

Volume 19, Issue 2, 2007, pp. 121-140
DOI: 10.1615/MultScienTechn.v19.i2.20
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ABSTRACT

The interface tracking method based on a nonuniform subcell scheme (NSS) and a level set function (LS) is applied to three-dimensional (3-D) general curvilinear and cylindrical coordinate systems. The method for 3-D general curvilinear coordinates is based on the combination of NSS, LS, a finite volume method, and a multiblock method. The method for cylindrical coordinates is based on the combination of NSS, LS, the variable transformation proposed by Verzicco and Orlandi (1996), and a simple method for evaluating surface tension force at the singular point r = 0. Simulations of single air and vapor bubbles in rod bundle geometry are carried out using the former method. Predicted bubble shapes and terminal velocities agree well with measured data and an available terminal velocity model. Bubbles and drops in pipes are simulated using the latter method. Terminal velocities of single drops confined in a pipe are well predicted. The bouncing motion of an air bubble in a laminar water flow in a vertical pipe is successfully simulated. Volumes of bubbles and drops are well conserved in all simulations.

CITED BY
  1. Hayashi Kosuke, Kurimoto Ryo, Tomiyama Akio, Interface Tracking Simulation of Drops Rising through Liquids in a Vertical Pipe Using Three Coordinate Systems, The Journal of Computational Multiphase Flows, 2, 1, 2010. Crossref

  2. Hayashi K., Tomiyama A., A drag correlation of fluid particles rising through stagnant liquids in vertical pipes at intermediate Reynolds numbers, Chemical Engineering Science, 64, 12, 2009. Crossref

  3. Okawa Tomio, Hayashi Kosuke, Tomiyama Akio, Numerical verification of a simplified model for vapor bubble lift-off from a hydrophilic heated flat-wall, Nuclear Engineering and Design, 240, 12, 2010. Crossref

  4. Hayashi K., Kurimoto R., Tomiyama A., Terminal velocity of a Taylor drop in a vertical pipe, International Journal of Multiphase Flow, 37, 3, 2011. Crossref

  5. Zun Iztok, Perpar Matjaz, Gregorc Jurij, Hayashi Kosuke, Tomiyama Akio, Mixing of thermally stratified water layer by a free rising wobbling air bubble, Chemical Engineering Science, 72, 2012. Crossref

  6. Kostoglou M., Karapantsios T. D., Buffone C., Glushchuk A., Iorio C., A Theoretical Study of Steady State and Transient Condensation on Axisymmetric Fins Under Combined Capillary and Gravitational Forces, Microgravity Science and Technology, 28, 5, 2016. Crossref

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