临近空间高超声速巡航飞行器红外特征

doi:10.12382/bgxb.2021.0105

摘要/Abstract

摘要： 针对现有天基红外预警卫星对临近空间高超声速巡航飞行器的可探测性分析和未来天基红外预警卫星规划建设对临近空间高超声速巡航飞行器的光学特征数据需求，采用高超声速空气动力学、燃烧学、传热学、气体辐射理论等相结合的计算分析方法，研究类X-51A高超声速巡航飞行器在典型飞行状态下的流场参数、本体温度、红外辐射光谱及红外辐射亮度和红外辐射强度。结果表明：类X-51A高超声速巡航飞行器辐射特征受飞行时间及弹道影响，本体红外辐射受气动加热影响明显，以航空煤油为燃料的飞行器喷焰红外辐射以CO₂、H₂O、CO的1.52 μm、2.68 μm、 4.39 μm辐射带特征最为显著；在包含CO₂、H₂O、CO分子强特征辐射谱的窄带总辐射中，喷焰辐射是主要贡献，而在非喷焰特征辐射谱带内的总辐射中，飞行器本体辐射占主导。

关键词: 高超声速巡航飞行器, 喷焰, 红外辐射光谱, 红外辐射强度

Abstract: To meet the demand for optical characteristic data of near-space hypersonic cruise vehicles for the detectability analysis of space-based infrared early warning satellites and the design of future space-based infrared early warning satellitesthe flow-field parameters, body temperature, infrared radiation spectrum, infrared radiation luminance, and infrared radiation intensity of the hypersonic cruise vehicle like X-51A under the typical flight condition are studied based on the combined computation and analysis methods of hypersonic aerodynamics, combustion theory, heat transfer theory, gas radiation theory, and so on. The calculated results show that the radiation features of the hypersonic cruise vehicle like X-51A are influenced by the flight time and ballistic. The infrared radiation of the body is influenced obviously by the aerodynamic heating. The jet flame radiation of the vehicle using aviation kerosene as fuel has strong radiation band of CO₂, H₂O and CO with wavelength of 1.52 μm, 2.68 μm and 4.39 μm. The jet flame radiation contributes most to the total narrow-band radiation, including the strong characteristic radiation spectra of CO₂, H₂O and CO molecule. The body radiation of the vehicle dominates the total radiation at the wavelength band which doesn’t include the characteristic radiation spectra of CO₂, H₂O and CO molecule.

Key words: hypersoniccruisevehicle, jetflame, infraredspectrum, infraredradiationintensity

中图分类号:

TN219

石安华，李海燕，石卫波，梁世昌. 临近空间高超声速巡航飞行器红外特征[J]. 兵工学报, 2022, 43(4): 796-803.

SHI Anhua, LI Haiyan, SHI Weibo, LIANG Shichang. Infrared Radiation Feature of Near Space Hypersonic Cruise Vehicle[J]. Acta Armamentarii, 2022, 43(4): 796-803.

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