Lattice Boltzmann simulations of thermocapillary motion of droplets in microfluidic channels

Jonathan Li, Haihu Liu*, Nikolaos Ioannou, Yonghao Zhang, Jason M. Reese

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Our recently developed lattice Boltzmann model is used to simulate droplet dynamical behaviour governed by thermocapillary force in microchannels. One key research challenge for developing droplet-based microfluidic systems is control of droplet motion and its dynamic behaviour. We numerically demonstrate that the thermocapillary force can be exploited for microdroplet manipulations including synchronisation, sorting, and splitting. This work indicates that the lattice Boltzmann method provides a promising design simulation tool for developing complex droplet-based microfluidic devices.

Original languageEnglish
Pages (from-to)1113-1126
Number of pages14
JournalCommunications in computational physics
Volume17
Issue number5
DOIs
Publication statusPublished - 3 Jun 2015

Keywords

  • Lattice Boltzmann method
  • thermocapillary force
  • droplet manipulation
  • microfluidics
  • digital microfluidics
  • BGK model
  • fluid dynamics

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