固体火箭技术2025，Vol.48Issue(2)：316-322,7.DOI:10.7673/j.issn.1006-2793.2025.02.017
过载发动机内壁面总热流和辐射热流的动态测量研究
Dynamic measurement of total heat flux and radiative heat flux on the inner wall of overload test SRM
摘要
Abstract
In order to obtain the total heat flux and radiative heat flux on the inner wall of solid rocket motor(SRM)under o-verload condition,a double-point Gordon heat flux sensor equipped with sapphire window was designed to measure the total heat flux and radiative heat flux simultaneously.The variation of heat flux at the inner wall of the SRM was obtained.With the simulated overload test SRM on ground,the thermal test was carried out and the dynamic total heat flux and radiative heat flux on the inner wall of the test SRM with aluminized propellant were obtained.The test results show that the heat flux measuring equipment can withstand the harsh condition of high temperature,high pressure and strong erosion of molten particle gas in the SRM under overload conditions.The peak total heat flux density on the lower wall of the SRM test section is 7.5 MW·m-2,the peak total heat flux den-sity and radiative heat flux density on the side wall are 3.9 MW·m-2 and 1.1 MW·m-2,respectively.The test results could be used for validating the numerical simulation and providing the heat flux parameters for the refined design of the thermal protection system of SRM.关键词
固体火箭发动机/含铝推进剂/过载条件/热流密度Key words
solid rocket motor/aluminized propellant/overload condition/heat flux分类
航空航天引用本文复制引用
李文彬,颜勇,郝雪帆,李伟,张虎..过载发动机内壁面总热流和辐射热流的动态测量研究[J].固体火箭技术,2025,48(2):316-322,7.基金项目
国家自然科学基金(52276086) （52276086）
固体推进全国重点实验室研究基金(SY41F2024120063) （SY41F2024120063）
基础研究项目(514010303-102). （514010303-102）
