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用格子Boltzmann方法研究波及其粘性实验
引用本文:阎广武,邵显,胡守信. 用格子Boltzmann方法研究波及其粘性实验[J]. 吉林大学学报(理学版), 1996, 0(4)
作者姓名:阎广武  邵显  胡守信
作者单位:吉林大学数学系,北京应用物理与计算数学研究所
摘    要:应用单松弛的BGK型的LatticeBoltzmann方程(LBE),模拟有粘性的一维小扰动波的传播.由格子气Boltzmann理论出发得到的小扰动方程的理论解与直接用LatticeBoltzmann方法得到的数值解,在相同条件下符合的很好.并用按均方差最小原则调整松弛因子τ的方法,给出了数值实验粘性系数,验证了LatticeBoltzmann理论中的τ-η曲线.

关 键 词:LatticeBoltzmann方程,BGK模型,格子气波,数值实验粘性

Investigations of Waves and Their Viscosity Experiments with LBM
Yan Guangwu,Shao Xian,Hu Shouxin. Investigations of Waves and Their Viscosity Experiments with LBM[J]. Journal of Jilin University: Sci Ed, 1996, 0(4)
Authors:Yan Guangwu  Shao Xian  Hu Shouxin
Abstract:Using a BGK-type Lattice Boltzmann method, this paperdeals with the problem of propagation of one dimensional small--perturbed waves. The results of LBM numerical simulations are in good agreement with those of theoretical formula derived from LBM. To check the theoretical r--V curve,the numerically experimental viscosity was calculated using the method of least squares.
Keywords:Lattice Boltzmann method   BGK-type   Lattice gas wave  numerically experimental viscosity  
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