【摘要】 利用六角形格子离散的方法 ,使得每个六角形Cell里含有 3种不同运动速度的粒子微团 ,宏观物理量用这些粒子微团的矩来定义 .根据微观和宏观之间的质量、动量、能量守恒准则 ,建立了一个二维的D2Q19格子Bo ltzmann模型 ,从该D2Q19模型出发可推导出宏观的流体力学方程组 .用该模型对冲击波在障碍物组表面上的折射现象进行数值模拟 ,并将计算结果与实验进行了比较 .更多还原

【Abstract】 Three kinds of particle granules are included in each hexagonal cell using a discrete method of hexagonal lattice,and macroscopic quantities are defined by the moment of particle granules.Two-dimensional D2Q19-lattice Boltzmann model has been developed by the conservation laws of mass,momentum and energy,and the hydrodynamic equations can be derived from the model.The shock wave reflection phenomena on the surface of obstacles have been simulated using the model. [更多还原