Unstructured mesh finite volume LBM

Xiao Hui Su, Yan Liu, Kai Lin Zhang, Yong Zhao, Wei Wang, Rong Xie, Guang Zhao

Research output: Contribution to journalArticlepeer-review


A unstructured mesh finite volume LBM is presented. Cell-vertex finite volume method is used to discretize the governing equations. During the discretization in time, there are two-time steps, pseudo-time step and real time step respectively, in which forward scheme is used in former while the second order backward scheme is used in latter. In space, an edge-based flux calculating algorithm is adopted and higher order TVD scheme is utilized to calculate the flux through control volume interface. A strategy of implicit iteration is used for solving discrete governing equations and the second order five-layer Runge-Kutta method is utilized for the solution of variables. The simulating results of 2D cylindrical-Couette flow and lid-driven cavity flow show that the proposed method is believed to be an effective tool for solving flow pattern of flow domain with irregular boundary.

Original languageEnglish
Pages (from-to)809-815
Number of pages7
JournalDalian Ligong Daxue Xuebao/Journal of Dalian University of Technology
Issue number6
Publication statusPublished - Nov 2012


  • Finite volume method
  • LBM
  • Unstructured mesh

ASJC Scopus subject areas

  • General Engineering
  • General Physics and Astronomy
  • Applied Mathematics


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