固体火箭发动机内部热环境测量技术现状

Review of experimental measurement for internal thermalenvironment of solid rocket motor

热防护系统的设计水平对固体火箭发动机的性能有着重要影响,准确获得发动机内部热环境参数是对其热防护系统进行精细化设计的前提。为全面了解国内外固体火箭发动机内部热环境实验测量现状及相关测量技术,从固体火箭发动机内壁面温度、总热流和辐射热流测量三个方面对国内外相关研究进行了调研,总结了各类测量方法的原理、特点及应用现状,并对这些方法用于固体火箭发动机内部热环境测量进行了评述和展望。该文可为开展固体发动机热环境原位动态测试提供方案选型依据,进而支撑热防护系统的精细化设计和内部热环境精细仿真预示方法的发展。

The design level of thermal protection system(TPS)has a great influence on the performance of the solid rocket motor(SRM).The accurate internal thermal environment parameters of SRM are the premise for the fine design of TPS.In order to get a comprehensive understanding of the progress on the experimental measurement and relevant techniques of the internal thermal environment of SRM,the reviews of inner temperature,total heat flux and radiative heat flux measurements of the SRM are made in this study.The test principles,characteristics and applications of the relevant measurement methods are summarized and the applications of these methods on the measurement of internal thermal environment of SRM are reviewed and prospected.This paper could provide a guidance for selecting the measurement method for carrying out the in-situ dynamic test of the internal thermal environment within the SRM.Furtherly,it will facilitate the development of fine design of TPS and numerical method for predicting the internal thermal environment accurately.