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国际多尺度计算工程期刊
影响因子: 1.016 5年影响因子: 1.194 SJR: 0.554 SNIP: 0.82 CiteScore™: 2

ISSN 打印: 1543-1649
ISSN 在线: 1940-4352

国际多尺度计算工程期刊

DOI: 10.1615/IntJMultCompEng.2014007417
pages 177-192

HYBRID LATTICE BOLTZMANN AND FINITE VOLUME METHODS FOR FLUID FLOW PROBLEMS

Zheng Li
College of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
Mo Yang
School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China
Yuwen Zhang
University of Missouri, Columbia, MO 65201, USA

ABSTRACT

Two hybrid methods that combine the lattice Boltzmann method (LBM) and finite volume method (FVM) are proposed in this paper. The D2Q9 model is used in LBM, while the SIMPLE algorithm with QUICK scheme is chosen for FVM. The hybrid methods are fulfilled by dividing the computational domain into the LBM and FVM zones, with a public message-passing zone in between, and only macroscopic velocities are needed to be passed between the two separated zones. A nonequilibrium extrapolation scheme and the finite difference velocity gradient method are used to pass information between the SIMPLE and LBM zones. The proposed methods are used to solve problems with the lid-driven flow, and the results obtained using pure LBM, pure SIMPLE, and the hybrid methods with different schemes agreed with each other very well in different Reynolds numbers.


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