印度烈火-Ⅱ导弹助推段和再入段红外辐射特性计算研究  

IR radiation characteristics of India Angi-Ⅱat launching and reentry stage

作　　者：江涛[1] 丁明松[1] 刘庆宗 董维中[1] 高铁锁[1] 龙尧松 Jiang Tao;Ding Mingsong;Liu Qingzong;Dong Weizhong;Gao Tiesuo;Long Yaosong(Computational Aerodynamics Institute of China Aerodynamics Research and Development Center,Mianyang 621000,China;School of Aerospace Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Design Department of the Ninth Research Institute of China Astronautics Science and Industry Company,Wuhan 430035,China)

机构地区：[1]中国空气动力研究与发展中心计算空气动力研究所,四川绵阳621000 [2]华中科技大学航空航天学院,湖北武汉4300074 [3]中国航天科工集团第九研究院设计所,湖北武汉430035

出　　处：《红外与激光工程》2020年第5期157-162,共6页Infrared and Laser Engineering

基　　金：国家数值风洞工程支持项目。

摘　　要：弹道导弹发射阶段发动机尾焰中的H2O、CO2等大量高温气体组分和弹头再入段高温气体流场以及受气动加热的本体均产生强烈的红外辐射,是红外预警、跟踪、制导的重要信号。针对印度烈火-Ⅱ导弹,开展其助推段和再入段的辐射特性计算分析。从窄带辐射模型出发,考虑流场中重要气体组分的红外辐射机制,建立高温气体组分光谱参数的计算方法,发展了目标红外辐射特性计算软件。根据助推段火箭发动机尾焰流场和再入段流场的数值模拟的物理化学参数,利用所发展的辐射计算软件,计算分析了烈火-Ⅱ导弹助推段和再入段典型状态的红外辐射特性,可以为针对烈火导弹的预警、反导提供参考。The high temperature gas such as H2O and CO2 of the exhaust plume of a launching ballistic missile will bring strong IR radiation,so it is the aero heated warhead and the high temperature gas flow around the warhead.The IR radiation is an important signal for IR early warning,tracking and guiding of target in the nearspace.The IR radiation characteristics of Angi-Ⅱmissile during launching and reentry stage was studied.Based on narrow band radiation model,and the radiation mechanism of vital gas species were taken into account.The methods for spectral parameters calculation of the species in the high temperature flow were set up,and then a computer code was developed for IR characteristics of targets in the air,which can compute IR characteristics of warhead body and high temperature flow.According to simulated data of the exhaust plume flow and reentry flow around the warhead,the radiation code was used for computing the IR characteristics of Angi-Ⅱat launching and reentry stage,which can be used as references for early warning and anti-ballistic missile about Angi-Ⅱ.

关 键 词：烈火-Ⅱ导弹 发动机尾焰 发射段 再入段 红外辐射 

分 类 号：V19[航空宇航科学与技术—人机与环境工程]