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| 红外导引头高速流场及其对光线传输影响的数值模拟 | |
| 引用本文： | 江涛,丁明松,高铁锁,董维中,方艺忠,彭程远.红外导引头高速流场及其对光线传输影响的数值模拟[J].光学学报,2012,32(8):801002-20. |
| 作者姓名： | 江涛 丁明松 高铁锁 董维中 方艺忠 彭程远 |
| 作者单位： | 江涛:中国空气动力研究与发展中心, 四川 绵阳 621000 丁明松:中国空气动力研究与发展中心, 四川 绵阳 621000 高铁锁:中国空气动力研究与发展中心, 四川 绵阳 621000 董维中:中国空气动力研究与发展中心, 四川 绵阳 621000 方艺忠:试验物理与计算数学国家级重点实验室, 北京 100076 彭程远:试验物理与计算数学国家级重点实验室, 北京 100076 |
| 摘 要： | 研究红外光线经过高速流场时由于折射产生的瞄视误差(BSE),对于红外末制导拦截弹的命中精度有重要意义。考虑高温真实气体效应,求解热化学非平衡Navier-Stokes(N-S)方程得到导引头的流场,采用光线追迹的方法,对红外光线经过流场后到达导引头光学窗口的瞄视误差进行了计算分析,研究了光线入射角、飞行马赫数、攻角、高度及红外导引头外形对瞄视误差的影响。 |
| 关 键 词： | 气动光学 光学窗口 高速流场 光线追迹 瞄视误差 |
| 收稿时间： | 2012/2/28 |
Numerical Simulation of IR Seeker High-Speed Flow Field and Its Influence on Ray Transmission |
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| Jiang Tao,Ding Mingsong,Gao Tiesuo,Dong Weizhong,Fang Yizhong,Peng Chengyuan.Numerical Simulation of IR Seeker High-Speed Flow Field and Its Influence on Ray Transmission[J].Acta Optica Sinica,2012,32(8):801002-20. | |
| Authors: | Jiang Tao Ding Mingsong Gao Tiesuo Dong Weizhong Fang Yizhong Peng Chengyuan |
| Institution: | 1 China Aerodynamics Research and Development Center,Mianyang,Sichuan621000,China2 State Key Laboratory of Experimental Physics and Computational Mathematics,Beijing 100076,China |
| Abstract: | Study on the bore-sight error (BSE) induced by high-speed flow-field is important for the hit precision of a hit-to-kill interceptor with infrared ray (IR) terminal homing system. Based on the flow-field by solving the thermal-chemistry non-equilibrium Navier-Stokes (N-S) equation, the ray-tracing method is used to calculate the BSE of ray transmission through the flow field outside the optical window. The impact factors of BSE are considered, including incidence angle, Mach number, attack angle, altitude and the IR seeker shape. |
| Keywords: | aero-optics optical window high-speed flow field ray tracing bore-sight error |
| 本文献已被 CNKI 等数据库收录！ | |