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A New Extrapolation Treatment for Boundary Conditions in Lattice Boltzmann Method

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2013 Chinese Physical Society and IOP Publishing Ltd
, , Citation Wang Zheng-Dao et al 2013 Chinese Phys. Lett. 30 094703 DOI 10.1088/0256-307X/30/9/094703

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Author affiliations

1 Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072

2 Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai 200072

3 Shanghai Program for Innovative Research Team in Universities, Shanghai 200072

4 Faculty of Mechanical Engineering and Automatic, Zhejiang Sci-Tech University, Hangzhou 310018

5 Department of Mechanical and Aerospace Enigineering, UC Irvine, CA 92617, USA

Dates

  1. Received 26 April 2013
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0256-307X/30/9/094703

Abstract

The lattice Boltzmann method is widely used in solving hydrodynamics for various systems. The accuracy of the extrapolation method for boundary conditions and Mei's method for curved boundary is not high enough. We propose a modified extrapolation method for boundary conditions. Numerical simulations conform the higher accuracy and stability compared with the other methods.

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10.1088/0256-307X/30/9/094703