【摘要】 在简单声速可调模型的基础上，通过在演化方程中引入一个粒子吸引项，建立了高Ｍａｃｈ数格子Ｂｏｌｔｚｍａｎｎ模型．利用Ｃｈａｐｍａｎ－Ｅｎｓｋｏｇ渐进展开法推导相应的宏观流体力学方程．模拟结果表明，该模型可降低声速，将Ｍａｃｈ数提高到５以上，且与理论值吻合．更多还原

【Abstract】 The authors present a LB model to simulate high Mach-number flows by introducing an attractive force based on the simple selectable sound speed model. The corresponding macro-dynamical equation from Chapman-Enskog expansion shows that this model has the advantage to soften sound speed effectively and then the Mach-number is raised greafly(up to more than 5); The establishment of the model will open the wide vista in simulating high Mach-number flows by means of lattice.更多还原