Entropy (Oct 2015)

Extension of the Improved Bounce-Back Scheme for Electrokinetic Flow in the Lattice Boltzmann Method

  • Qing Chen,
  • Hongping Zhou,
  • Xuesong Jiang,
  • Linyun Xu,
  • Qing Li,
  • Yu Ru

DOI
https://doi.org/10.3390/e17117406
Journal volume & issue
Vol. 17, no. 11
pp. 7406 – 7419

Abstract

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In this paper, an improved bounce-back boundary treatment for fluid systems in the lattice Boltzmann method [Yin, X.; Zhang J. J. Comput. Phys. 2012, 231, 4295–4303] is extended to handle the electrokinetic flows with complex boundary shapes and conditions. Several numerical simulations are performed to validate the electric boundary treatment. Simulations are presented to demonstrate the accuracy and capability of this method in dealing with complex surface potential situations, and simulated results are compared with analytical predictions with excellent agreement. This method could be useful for electrokinetic simulations with complex boundaries, and can also be readily extended to other phenomena and processes.

Keywords