高速飞行器气动光学效应  

Aero-optical effects of supersonic vehicles

作　　者：田立丰 杨东霖 黄开诱 TIAN Lifeng;YANG Donglin;HUANG Kaiyou(School of Aeronautics and Astronautics,Sun Yat-sen University,Shenzhen 518107,China;Shenzhen Key Laboratory of Intelligent Microsatellite Constellation,Shenzhen 518107,China)

机构地区：[1]中山大学航空航天学院,广东深圳518107 [2]深圳市智能微小卫星星座技术与应用重点实验室,广东深圳518107

出　　处：《中山大学学报（自然科学版）（中英文）》2025年第1期257-264,共8页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：深圳市科技计划(ZDSYS20210623091808026)。

摘　　要：采用数值模拟、计算光学方法和理论,对超声速飞行器流场进行数值模拟研究,获取不同飞行高度和攻角下光学窗口上方流场的密度分布,根据Gladstone-Dale关系得到光学窗口上方的折射率场,利用光线追迹法计算流场光程差分布情况。对流场光程差的分布情况进行分析,可以得出结论:随着飞行高度的增加,气动光学效应逐渐减弱;随着攻角的增大,气动光学效应逐渐增强。In this paper,numerical simulation methods,computational optical methods and theories are used to study the flow field of supersonic aircraft.The density distribution of the flow field above the optical window at different flight heights and angles of attack is obtained.And the refractive index field above the optical window according to the Gladstone-Dale relationship is obtained,the optical path difference distribution of the flow field is calculated by using the ray tracing method.Through the analysis on the distribution of the optical path difference of the parallel beam through the flow field,it can be concluded that the aerodynamic optical effect gradually weakens with the increase of the flight altitude.With the increase of the angle of attack,the aerodynamic optical effect is gradually enhanced.

关 键 词：气动光学 飞行高度 攻角 光程差 

分 类 号：O436[机械工程—光学工程]