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表 1 D3Q27 离散速度模型参数
Table 1 Parameters of the D3Q27 discrete velocity model
模型 格子声速 c S / c 格子离散速度 e α / c 权重 w α
D3Q27 1 / 3 (0, 0, 0) 8/27 ( α = 0
± 1 , 0, 0), (0, ± 1 , 0), (0, 0, ± 1 2/27 ( α = 1 , ? , 6
± 1 ± 1 , 0), ( ± 1 , 0, ± 1 ), (0, ± 1 ± 1 1/54 ( α = 7 , ? , 18
± 1 ± 1 ± 1 1/216 ( α = 19 , ? , 26