二维过渡区含化学反应的喷流干扰流场DSMC/EPSM仿真  

Numerical study on chemical reactive jet interaction flows in the two-dimensional transitional regime by DSMC/EPSM method

作　　者：李洁[1] 陈伟芳[1] 任兵[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：《推进技术》2005年第2期106-110,共5页Journal of Propulsion Technology

摘　　要：构造可仿真含化学反应的稀薄/连续不同流动区域的DSMC/EPSM混合算法, 应用该算法, 数值模拟过渡区有横向喷流干扰的二维有限平板高超声速化学反应流场, 分析流场结构和物面气动系数分布等特性, 充分反映稀薄/连续混合区域高超声速流动中的化学反应效应, 同时通过与DSMC算法比较, 论证DSMC/EPSM混合算法的可行性与计算效率相对提高的优越性。A hybrid Direct Simulation Monte Carlo/Equilibrium Particle Simulation Method (DSMC/EPSM) code is established to provide solutions for transverse chemical reactive jet from two-dimensional flat plate interacting with rarefied external flows in the transitional regime. The structure of flow field and the aerodynamics properties on the plate surface are analyzed in details. The chemical reactive effects are verified in the hypersonic flows, and the hybrid DSMC/EPSM method is compared with the DSMC method. It is proved that the hybrid DSMC/EPSM method is appropriate and efficient.

关 键 词：喷流干扰 稀薄气体 化学反应 混合算法 数值仿真 

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]