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Journal of Shanghai University >

2019 , Vol. 25 >Issue 2: 256 - 265

DOI: https://doi.org/10.12066/j.issn.1007-2861.1933

Research Articles

Lattice Boltzmann method for simulation of flow with high Reynolds number

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  • Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China

Received date: 2017-04-25

  Online published: 2019-05-05

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Abstract

A local time step technique for the generalized interpolation lattice Boltzmann method (GILBM) with the body-fitted grid is developed to improve stability and accelerate convergence of airfoil flow simulation at a high Reynolds number. The difficulty in dealing with complex boundaries in the LBGK model is overcome by introducing the non-equilibrium extrapolation boundary treatment. Flows of NACA0012 airfoil within the range are simulated. Advancement of the method is verified by comparing efficiency and stability of the calculation with traditional GILBM.

Key words： lattice Boltzmann method (LBM); body-fitted grids; local time step; high Reynolds number; non-equilibrium extrapolation

Cite this article

CHEN Yanxiao, LI Xiaowei, DING Jue, WENG Peifen . Lattice Boltzmann method for simulation of flow with high Reynolds number[J]. Journal of Shanghai University, 2019 , 25(2) : 256 -265 . DOI: 10.12066/j.issn.1007-2861.1933

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