航空学报 > 2000, Vol. 21 Issue (5): 434-436

热化学非平衡流辐射流场工程计算方法研究

黄华, 瞿章华   

  1. 国防科技大学航天技术系 湖南长沙 410073
  • 收稿日期:1999-06-07 修回日期:1999-11-10 出版日期:2000-10-25 发布日期:2000-10-25

NUMERICAL STUDY OF THERMOCHEMICAL NONEQUILIBRIUM RADIATION FLOWFIELD ENGINEERING CALCULATION

HUANG Hua, QU Zhang-hua   

  1. Department of Aerospace Technology, National University of Defence Technology, Changsha 410073, China
  • Received:1999-06-07 Revised:1999-11-10 Online:2000-10-25 Published:2000-10-25

摘要: 从耦合辐射的轴对称热化学非平衡 N-S方程出发,采用双温度、1 1组元反应气体模型,耦合修正的Nicolet单温度辐射模型,利用隐式 NND有限差分格式和时间预处理技术数值求解了 FIREII飞船热化学非平衡辐射流场,得到的辐射传热结果与有关实验结果和更细致的热化学非平衡辐射模型的结果进行了比较

关键词: 非平衡流, 双温度模型, 辐射模型

Abstract: The symmetric thermochemical nonequilibrium radiation flow is simulated numerically. The full Navier Stokes equations are taken as the governing equations. The two temperature and eleven species gas model is considered. The improved Nicolet "one temperature" radiation model is used. NND scheme for shock capture and time preconditional matrix technique are used for numerical solution. The result of radiation heat is got for contrasting with experiment result.

Key words: nonequilibrium flow, two- temperatur e model, r adiation model