A comparison between different lifting relations from macroscopic variables to lattice Boltzmann distribution functions

Zi Xiang Tong, Ming Jia Li, Ya Ling He*, Wen Quan Tao

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The lifting relations for the reconstruction of the distribution functions of lattice Boltzmann method (LBM) from the macroscopic variables are compared. The single-relaxation-time (SRT) and multiple-relaxation-time (MRT) models with both first- and second- order expansions are studied. The results show that the lifting relations for SRT-LBM are more precise, but the relations for MRT-LBM are more stable. The differences between the first and second order models are small, For the MRT-LBM, the modified models should be used to insure the continuity of the velocity.

Original languageEnglish
Title of host publicationInternational Conference on Computational Methods for Thermal Problems
EditorsNicola Massarotti, Perumal Nithiarasu, Yogendra Joshi
PublisherDalian University of Technology
ISBN (Print)9788874314591, 9788874318285
Publication statusPublished - 2016
Externally publishedYes
Event4th International Conference on Computational Methods for Thermal Problems, THERMACOMP 2016 - Atlanta, United States
Duration: 6 Jul 20168 Jul 2016

Publication series

NameInternational Conference on Computational Methods for Thermal Problems
Volume0
ISSN (Print)2305-5995
ISSN (Electronic)2305-6924

Conference

Conference4th International Conference on Computational Methods for Thermal Problems, THERMACOMP 2016
Country/TerritoryUnited States
CityAtlanta
Period6/07/168/07/16

Keywords

  • Boundary condition
  • Coupling method
  • Initial condition
  • Lattice Boltzmann method

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