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
田立丰(1979年生),男;研究方向:实验空气动力学;E-mail:tianlf5@mail.sysu.edu.cn
纸质出版日期:2025-01-15,
网络出版日期:2024-07-24,
收稿日期:2024-05-31,
录用日期:2024-06-18
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田立丰,杨东霖,黄开诱.高速飞行器气动光学效应[J].中山大学学报(自然科学版)(中英文),2025,64(01):257-264.
TIAN Lifeng,YANG Donglin,HUANG Kaiyou.Aero-optical effects of supersonic vehicles[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2025,64(01):257-264.
田立丰,杨东霖,黄开诱.高速飞行器气动光学效应[J].中山大学学报(自然科学版)(中英文),2025,64(01):257-264. DOI: 10.13471/j.cnki.acta.snus.ZR20240183.
TIAN Lifeng,YANG Donglin,HUANG Kaiyou.Aero-optical effects of supersonic vehicles[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2025,64(01):257-264. DOI: 10.13471/j.cnki.acta.snus.ZR20240183.
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.
气动光学飞行高度攻角光程差
aero-opticsflight altitudeangle of attackoptical path difference
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