计算物理 ›› 1998, Vol. 15 ›› Issue (6): 711-716.

• 论文 • 上一篇    下一篇

高超声速三维热化学非平衡电离流动计算研究

谢中强, 欧阳水吾   

  1. 北京空气动力研究所, 100074
  • 收稿日期:1997-07-28 修回日期:1998-02-09 出版日期:1998-11-25 发布日期:1998-11-25
  • 作者简介:谢中强,男,33,岁,高级工程师,硕士

The Computation of 3-D Hypersonic Ionized Flows in Thermochemical Nonequilibrium

Xie Zhongqiang, Ouyang Shuiwu   

  1. Beijing Institute of Aerodynamics, 100074
  • Received:1997-07-28 Revised:1998-02-09 Online:1998-11-25 Published:1998-11-25

摘要: 研究发展了一种计算高超声速三维热化学非平衡电离流动的数值方法。真实气体热力学状态是通过平动-转动温度和电子-振动温度来模拟。对零攻角轴对称钝锥体和有攻角钝锥体的高超声速电离流动,采用隐式有限体积法NND格式,数值求解NS方程。

关键词: 热化学非平衡, 有限体积法, NND格式, NS方程, 三维高超声速流

Abstract: A numerical method for the computation of 3-D hypersonic ionized flows in thermochemical nonequilibrium has been developed. The thermodynamic state of real gas is modeled with a translational rotational temperature and an electron vibrational temperature. Numerical investigations are performed for 3-D hypersonic ionized flows around an axisymmetric blunt body and over blunt body at angle of attack. Real gas Navier Stokes computations relies on a finite volume approach based on an Implicit NND scheme. The agreement with other computations has been found to be good. The computed electron densities in the flowfield agree well with experimental results.

Key words: thermochemical nonequilibrium, finite volume approach, NND scheme, Navier Stokes equations, three dimensional hypersonic flow

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