二维过渡区含化学反应的喷流干扰流场DSMC/EPSM仿真

推进技术 ›› 2005, Vol. 26 ›› Issue (2): 106-110.

二维过渡区含化学反应的喷流干扰流场DSMC/EPSM仿真

李洁,陈伟芳,任兵

国防科技大学航天与材料工程学院湖南长沙410073;国防科技大学航天与材料工程学院湖南长沙410073;国防科技大学航天与材料工程学院湖南长沙410073

发布日期:2021-08-15

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

Inst. of Aerospace and Material Engineering, National Univ. of Defence Technology, Changsha 410073, China;Inst. of Aerospace and Material Engineering, National Univ. of Defence Technology, Changsha 410073, China;Inst. of Aerospace and Material Engineering, National Univ. of Defence Technology, Changsha 410073, China

Published:2021-08-15

摘要/Abstract

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。

关键词: 喷流干扰;稀薄气体;化学反应;混合算法;数值仿真

Abstract: 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.

Key words: Jet interference;Rarefied gas;Chemical reaction;Combinatirial algorithm;Numerical simulation

李洁,陈伟芳,任兵. 二维过渡区含化学反应的喷流干扰流场DSMC/EPSM仿真[J]. 推进技术, 2005, 26(2): 106-110.