Abstract：In this paper,the lattice Boltzmann method(LBM) coupled with a subgrid scale model is applied to turbulent flow of the atmospheric plasma deposition with assistant laser effect.The hexigonal 7-bit grid and two opportune equilibrium distribution functions are selected.The LBGK functions are expanded with Taylor expansion,Chapman-Enskog expansion and multi scale expansion.The macro nonlinear partial differential equations of mass,momentum and energy transportation have been derived from statistic of distributions of micro particles in LBGK functions provided the equilibrium distribution functions satisfy some statistic formulas.At the same time,the expression of diffusion coefficients and the coefficients of equilibrium distribution functions are obtained.The erected model is ready for simulation of the atmospheric plasma deposition with an assistant laser effect.
收稿日期: 2006-04-25
引用本文:
胡盛德,王桐,石晓东,赵天婵. 激光辅助大气等离子弧堆焊射流场计算模型[J]. , 2006, 45(4): 0-0.
胡盛德,王桐,石晓东,赵天婵. Calculation model for plasma deposition with an assistant laser effect. , 2006, 45(4): 0-0.
