摘要
研究再入高温绕流及尾流流场的辐射特性对高超声速飞行器突防和识别技术的发展具有重要意义。本文基于Navier-Stokes方程和辐射传输方程,建立了沿任意视角方向的再入体全目标区流场（包括绕流及尾迹流场）辐射特性计算方法,计算分析了在0.4~12.0μm光谱范围内钝头双锥体高温化学反应流场辐射在不同视角（0°~180°）方向以及不同再入高度（40~60km）下的变化特征。
It is important to study the radiation of flow over a reentry body for the penetration and discrimination of a hypersonic vehicle.Based on Navier-Stokes equations and radiative transfer equation,the computational methods are set up to compute the flow with wake and its heat radiation over reentry vehicles.The radiative characteristics from the high temperature and chemical reaction flow over a blunt double-cones body are computed and analyzed with the spectral range from 0.4μm to12.0μm,the visual angle is from 0 to 180 degrees and flight altitude is from 40km to 60km.
出处
《空气动力学学报》
EI
CSCD
北大核心
2010年第4期410-413,共4页
Acta Aerodynamica Sinica
关键词
再入体
高温流场
尾流
化学组分
辐射特性
reentry body
high-temperature flow
wake flow
chemical species
radiative characteriscs
