Lattice Boltzmann for binary fluids with suspended colloids

K Stratford, R Adhikari, Ignacio Pagonabarraga, JC Desplat

Research output: Contribution to journalArticlepeer-review

Abstract

A new description of the binary fluid problem via the lattice Boltzmann method is presented which highlights the use of the moments in constructing two equilibrium distribution functions. This offers a number of benefits, including better isotropy, and a more natural route to the inclusion of multiple relaxation times for the binary fluid problem. In addition, the implementation of solid colloidal particles suspended in the binary mixture is addressed, which extends the solid-fluid boundary conditions for mass and momentum to include a single conserved compositional order parameter. A number of simple benchmark problems involving a single particle at or near a fluid-fluid interface are undertaken and show good agreement with available theoretical or numerical results.

Original languageEnglish
Pages (from-to)163-178
Number of pages16
JournalJournal of Statistical Physics
Volume121
Issue number1-2
DOIs
Publication statusPublished - Oct 2005
Event1st International Conference for Mesoscopic Methods in Engineering and Science (ICMMES) - Braunschweig, Germany
Duration: 25 Jul 200430 Jul 2005

Keywords

  • lattice Boltzmann
  • binary fluids
  • colloids
  • PARTICULATE SUSPENSIONS
  • SPINODAL DECOMPOSITION
  • SIMULATIONS
  • PARTICLES
  • EQUATION
  • FLOW
  • SPHERES

Cite this