碱金属引射对尾流化学动力学和电子密度的影响

推进技术 ›› 1997, Vol. 18 ›› Issue (3): 82-85.

碱金属引射对尾流化学动力学和电子密度的影响

陈伟芳,曹登泰,吴其芬

国防科技大学航天技术系!长沙;410073;国防科技大学航天技术系!长沙;410073;国防科技大学航天技术系!长沙;410073

发布日期:2021-08-15

EFFECTS ON CHEMICAL KINETICS AND ELECTRON NUMBER DENSITY OF INJECTING ALKALINE METAL INTO WAKES

Dept. of Aerospace Technology, National Univ. of Defense Technology,Changsha, 410073;Dept. of Aerospace Technology, National Univ. of Defense Technology,Changsha, 410073;Dept. of Aerospace Technology, National Univ. of Defense Technology,Changsha, 410073

Published:2021-08-15

摘要/Abstract

摘要： 用把碱金属（Na）加入到空气尾流中进行数值模拟的方法,研究了碱金属引射对高超声速尾流化学动力学和电子密度的影响。采用的化学反应模型为包括O2、N2、O、N、NO、NO＋、Na+、Na、O2-及e-的10组元模型。计算结果表明,碱金属引射,使尾流电子数密度增加1～3个量级。计算结果与文献中的数据符合较好。

关键词: 高超声速流;尾流;化学反应动力学;电子密度;数值算法

Abstract: This paper studies the effects on chemical kinetics and electron number density ofinjecting alkaline metal into hypersonic wakes. These effects are obtained through numericallysimulating populated airwake by sodium injection. A ten-specie model is used as chemical reactionmodel, including the species O2. N2. N. O. NO. Na. NO+. Na+. O2+ and e-. The simulated results showthat the effect on electron number density of injecting sodium into wakes is significant, electronnumber density in wakes increases about 1-3 orders. The simulated results are good agreement withthe results in references.

Key words: Hypersonic flow;Wake;chemical kenetics. Electron density;Numerical algorithm

陈伟芳,曹登泰,吴其芬. 碱金属引射对尾流化学动力学和电子密度的影响[J]. 推进技术, 1997, 18(3): 82-85.