高超声速三维热化学非平衡电离流动计算研究  

The Computation of 3 D Hypersonic Ionized Flows in Thermochemical Nonequilibrium

作　　者：谢中强[1] 欧阳水吾[1] 

机构地区：[1]北京空气动力研究所

出　　处：《计算物理》1998年第6期73-78,共6页Chinese Journal of Computational Physics

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。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.

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 

分 类 号：O642.1[理学—物理化学]