热化学非平衡喷管流场的数值研究

推进技术 ›› 1998, Vol. 19 ›› Issue (3): 44-47.

热化学非平衡喷管流场的数值研究

黄华,瞿章华

长沙国防科技大学航天技术系;长沙国防科技大学航天技术系

发布日期:2021-08-15

NUMERICAL SIMULATION OF THERMOCHEMICAL NONEQUILIBRIUM NOZZLE FLOW

Deptof Aerospace Technology,National Univof Defence Technology,Changsha,410073;Deptof Aerospace Technology,National Univof Defence Technology,Changsha,410073

Published:2021-08-15

摘要/Abstract

摘要： 从非定常的基本方程出发，采用时间相关法，利用时间预处理的ＭａｃＣｏｒｍａｃｋ格式对空气为实验气体的７组元热化学非平衡一维喷管流场进行了数值计算，并分析了热化学非平衡对流场的影响。结果表明，对于一些实际应用的喷管条件，热化学非平衡具有较为显著的影响。

关键词: 时间相关;喷管气流;气动热化学;流动分布;数值计算

Abstract: The qusi one dimensional thermochemical nonequilibrium nozzle flow of seven species gas was calculated numerically by using a time dependent analysisThe time preconditioned explicit MacCormack scheme was used for the numerical solutionIt is shown that for some practical nozzle conditions,the nonequilibrium effects have significant influence on the nozzle flow properties

Key words: Time dependence;Nozzle flow;Aero thermochemistry;Flow distribution;Numerical calculation

黄华,瞿章华. 热化学非平衡喷管流场的数值研究[J]. 推进技术, 1998, 19(3): 44-47.