蒙皮反射的背景辐射对亚声速飞机红外特征的影响研究(一)：方法  

Effect of reflected background radiation by skin on infrared signature of subsonic aircraft(Ⅰ): methodology

作　　者：黄伟[1] 吉洪湖[1] 

机构地区：[1]南京航空航天大学能源与动力学院,江苏省航空动力系统重点实验室,江苏南京210016

出　　处：《红外与激光工程》2015年第6期1699-1703,共5页Infrared and Laser Engineering

基　　金：航空科学基金(20132752039)

摘　　要：基于CFD计算得到的流场、温度场结果和Modtran计算得到了环境辐射数据,建立了典型背景下的飞行器红外辐射特征计算模型。计算中考虑了波段、季节、发射率和双向反射函数等因素。通过地面试验数据,对计算方法进行了验证,计算值与试验数据吻合较好。该模型为更准确地分析飞行器的红外辐射特征,以及更合理地评价红外抑制措施的抑制效果提供了方法和工具。Based on the flow field and temperature field results calculated by CFD code and the environment data calculated by Modtran, the calculation model of the infrared radiation signature of aircraft under typical background was established. The factors of the wave band, season, emissivity and bidirectional reflectance distribution function were calculated. The calculation method was verified through a ground test data, and the calculation data is in good agreement with the experimental data. This model can provide a method and tool for more accurate analysis of aircraft ′ s infrared radiation signature and more reasonable evaluation of infrared suppression methods.

关 键 词：红外辐射 飞机 背景辐射 双向反射分布函数 

分 类 号：TN219[电子电信—物理电子学] V218[航空宇航科学与技术—航空宇航推进理论与工程]