稀薄流气粒两相耦合作用的热力学模型  

Two-way Coupled Model for Rarefied Multiphase Flow

作　　者：李洁[1] 尹乐[1] 颜力[1] 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073

出　　处：《国防科技大学学报》2009年第3期6-10,共5页Journal of National University of Defense Technology

基　　金：国家自然科学基金资助项目(10602063)

摘　　要：基于直接模拟Monte Carlo(DSMC)方法,从描述粒子微观运动层次出发,构造高空稀薄环境下气体—颗粒两相双向耦合作用的热力学模型,发展适用于稀薄流过渡区多相复杂流动的DSMC算法。通过算例验证,结果表明,此模型能够较好地反映相间动量和能量传输机制。Based on the DSMC method, a two-way coupled mechanical and thermal model for high-altitude two-phase rarefied flow is presented with considering of particles＇ micro flow properties. An approach of DSMC is developed for multiphase flow in the transitional regime of rarefied gas. Simulations are performed for the verified ease and the results show that the model agrees closely with the momentum and energy transfer mechanism.

关 键 词：稀薄气体动力学 多相流 DSMC方法 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]