Three-dimensional binary-liquid lattice Boltzmann simulation of microchannels with rectangular cross sections

A. Kuzmin*, M. Januszewski, D. Eskin, F. Mostowfi, J. J. Derksen

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The classical Bretherton problem describes the propagation of gas fingers through liquid media in a narrow channel with thin liquid films between bubbles and channel walls. The bubble shape and flow patterns are complicated functions of the capillary number Ca and Reynolds number Re. Recently, we investigated the applicability and parameter selection for the two-dimensional Bretherton problem (flow between parallel plates) using the free-energy binary liquid lattice Boltzmann method (LBM) [1]. This paper is the continuation of our previous work with simulations of three-dimensional channels with rectangular (mostly square) cross sections in the range of the capillary number 0.05

Original languageEnglish
Pages (from-to)306-316
Number of pages11
JournalChemical Engineering Journal
Volume178
DOIs
Publication statusPublished - 15 Dec 2011

Keywords

  • Taylor/Bretherton problem
  • Microchannel simulation
  • Multiphase flow
  • Lattice Boltzmann method
  • Binary liquid model
  • Flow in microchannels with square cross sections
  • Gravity driven
  • NUMERICAL-SIMULATION
  • LONG BUBBLES
  • TAYLOR FLOW
  • POLYGONAL CAPILLARIES
  • PRESSURE-DROP
  • 2-PHASE FLOW
  • FLUID
  • TUBE
  • MOTION
  • HYDRODYNAMICS

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