Diffuse reflection boundary condition for high-order lattice Boltzmann models with streaming-collision mechanism

Jian-Ping Meng, Yonghao Zhang

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

For lattice Boltzmann (LB) models, their particle feature is ensured by the streaming–collision mechanism. However, this mechanism is often discarded for high-order LB models due to multi-speed lattices. Here, we propose a new way of implementing the diffuse reflection boundary condition that can maintain the characteristic streaming–collision mechanism for high-order models. It is then tested on four lattice models, namely D2Q16, D2Q17, D2Q37 and D3Q121 for isothermal and thermal Couette flows and lid-driven cavity flows. Our implementation is shown to be able to achieve second-order accuracy globally.
Original languageEnglish
Pages (from-to)601-612
JournalJournal of Computational Physics
Volume258
Early online date8 Nov 2013
DOIs
Publication statusPublished - 1 Feb 2014

Keywords

  • lattice Boltzmann (LB) models
  • high-order model
  • diffuse reflection boundary condition
  • streaming-collision scheme

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