Influence of thickness of hemispherical dome on aerodynamic thermal radiation

Wang Hui; Dang Fanyang; Zhang Rongda; Ming Yue; Fan Zhigang

doi:10.3788/IRLA201847.1204002

Aerodynamically heated high temperature dome will produce strong infrared radiation. In some serious cases when the probe reaches saturation, the detecting precision of the seeker for target can be severely affected. In order to reduce the aerodynamic thermal radiation of the dome, a mathematical model of aerodynamic thermal radiation was developed. The aerodynamic heat and the aerodynamic thermal radiation of the hemispherical dome with different thickness were simulated numerically by software of finite element analysis and the mathematical model of aerodynamic thermal radiation. The influence of the thickness of hemispherical dome on the aerodynamic thermal response and aerodynamic heat radiation was analyzed and obtained. Research indicates that in the same flight conditions and in 10 s, when the thickness of hemispherical dome increases from 3 mm to 8 mm, the stagnation point temperature of the dome reduces by 16.41%; the thermal deformation of the dome reduces by 54.2%; the maximum irradiance of receiving surface of the detector decreases by 84.43%. Therefore increasing the thickness of the dome can not only reduce the temperature of the dome, but also effectively reduce the thermal deformation of the dome and the interference radiation illumination received on the detector.

Influence of thickness of hemispherical dome on aerodynamic thermal radiation

1. Research Centre for Space Optical Engineering,Harbin Institute of Technology,Harbin 150001,China

Received Date: 2018-07-12

Rev Recd Date: 2018-08-13

Publish Date: 2018-12-25

Key words:

Abstract: Aerodynamically heated high temperature dome will produce strong infrared radiation. In some serious cases when the probe reaches saturation, the detecting precision of the seeker for target can be severely affected. In order to reduce the aerodynamic thermal radiation of the dome, a mathematical model of aerodynamic thermal radiation was developed. The aerodynamic heat and the aerodynamic thermal radiation of the hemispherical dome with different thickness were simulated numerically by software of finite element analysis and the mathematical model of aerodynamic thermal radiation. The influence of the thickness of hemispherical dome on the aerodynamic thermal response and aerodynamic heat radiation was analyzed and obtained. Research indicates that in the same flight conditions and in 10 s, when the thickness of hemispherical dome increases from 3 mm to 8 mm, the stagnation point temperature of the dome reduces by 16.41%; the thermal deformation of the dome reduces by 54.2%; the maximum irradiance of receiving surface of the detector decreases by 84.43%. Therefore increasing the thickness of the dome can not only reduce the temperature of the dome, but also effectively reduce the thermal deformation of the dome and the interference radiation illumination received on the detector.

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Reference (15)

[1]	Sun Chiquan, Zhao Kan, Meng Junhe. IR optial system design of roll-elevation seeker[J]. Infrared and Laser Engineering,2017, 46(2):0204005. (in Chinese)孙赤全, 赵侃, 孟军合. 滚仰式导引头红外光学系统设计[J]. 红外与激光工程, 2017, 46(2):0204005.
[2]	Zhao Rui, Rong Jili, Li Yuejun. Rocket fairing with different curvetypes[J]. Acta Armamentarii, 2017, 38(5):1020-1026. 赵瑞, 荣吉利, 李跃军. 整流罩母线形状对脉动压力环境的影响研究[J]. 兵工学报, 2017, 38(5):1020-1026.
[3]	Yin Xingliang. Principle of Aero-optics[M]. Beijing:China Aerospace Press, 2003. (in Chinese)殷兴良. 气动光学原理[M]. 北京:中国宇航出版社, 2003.
[4]	Fan Zhigang, Xiao Haosu, Gao Yuqiang. Characteristics analysis of high-speedaerocraft optical dome in aerodynamic heating enviroment[J]. Journal of Applied Optics, 2009, 30(3):361-365. (in Chinese)范志刚, 肖浩苏, 高豫强. 气动热环境下高速飞行器光学头罩特性分析[J]. 应用光学, 2009, 30(3):361-365.
[5]	Hao Chenglong, Chen Shouqian, Fan Zhigang. Comprehensive analysis of imaging quality degradation of airborne optical system for aerodynamic flow field around the optical window[J]. Applied Optics, 2013, 52(33):7889-7898.
[6]	Hao Chenglong. Optical transmisson of quadric surface optical window and aero dynamic flow field[D]. Harbin:Harbin Institute of Technology, 2014. (in Chinese)郝成龙. 二次曲面光学头罩及外流场气动光传输研究[D].哈尔滨:哈尔滨工业大学, 2014.
[7]	Zhang Rongshi. Recent advances in infrared window and dome technologies[J]. Infrared and Laser Engineering, 2007, 36(S2):114-119. (in Chinese)张荣实. 红外窗口/整流罩技术新进展[J]. 红外与激光工程, 2007, 36(S2):114-119.
[8]	Xue Wenhui. Research on the thermal radiation characteristics of conformal come in the aero-dynamic environment[D]. Harbin:Harbin Institute of Technology, 2016. (in Chinese)薛文慧. 气动热环境下共形整流罩热辐射特性研究[D]. 哈尔滨:哈尔滨工业大学, 2016.
[9]	Wei Qun, Ai Xingqiao, Jiang Huhai, et al. Optimizing design of dome figure for supersonic seekers[J]. Optics and Precision Engineering, 2010, 18(2):384-389. (in Chinese)魏群, 艾兴乔, 姜湖海, 等. 超音速光学导引头整流罩的形状优化[J]. 光学精密工程, 2010, 18(2):384-389.
[10]	Meng Lixin, Zhao Dingxuan, Zhang Lizhong, et al. Boundary layer effect and compensation in airborne laser communication[J]. Optics and Precision Engineering, 2014, 22(12):3231-3238. (in Chinese)孟立新, 赵丁选, 张立中, 等. 机载激光通信中气动光学的影响及补偿[J]. 光学精密工程, 2014, 22(12):3231-3238.
[11]	Zhang Xin, Du Zhiyuan, Qiao Yanfeng, et al. Study on linear field of strapdown semi-active laser seeker[J]. Chinese Optics, 2015, 8(3):415-421. (in Chinese)张鑫, 杜智远, 乔彦峰, 等. 全捷联激光半主动导引头线性视场研究[J]. 中国光学, 2015, 8(3):415-421.
[12]	Wang Yahui, Wang Qiang, Zhang Bochuan, et al. Evaluation method for aero-thermo-radiation effect of IR window[J].Infrared and Laser Engineering, 2016, 45(2):0204001. (in Chinese)王亚辉, 王强, 张伯川, 等. 红外窗口气动热辐射效应评估方法[J]. 红外与激光工程, 2016, 45(2):0204001.
[13]	Han Wei, Zhuo Yuejin, Hu Xinqi. Study on aero-optical effect of a hypersonic missile infrared image guide[C]//SPIE, 2009, 7513(75):73516.
[14]	Visknata R, Anderson E E. Heat transfer smitransparent solids[J]. Advances in Heat Trasfer, 1975, 11:317-441.
[15]	Zhang Yun, Wang Shuyan, Sun Yishan, et al. Determination of the dome infrared windowin the supersonic mode[J]. Infrared Technology, 1999, 21(2):11-14. (in Chinese)张云, 王淑岩, 孙益善, 等. 超音速状态下整流罩红外窗口的选型问题研究[J]. 红外技术, 1999, 21(2):11-14.

Influence of thickness of hemispherical dome on aerodynamic thermal radiation

doi: 10.3788/IRLA201847.1204002

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