航空学报2025，Vol.46Issue(9)：160-171,12.DOI:10.7527/S1000-6893.2024.30888
防热结构梯度特性对飞行器气动热载调控的耦合模拟与实验验证
Coupling simulation of aircraft aerothermodynamics regulated by gradient characteristics of thermal protection structure and its experimental verification
摘要
Abstract
Advanced thermal protection system is an important part for safe flight of high-speed aircraft.With the de-velopment of composite material system for thermal protection,functional gradient composite materials with integrated thermal protection/insulation have been gradually applied to realize on-demand customization and collaborative design of thermal protection and thermal insulation properties.A tight coupling computation method for high Mach number aerothermal environment and thermal response of functionally gradient structure was developed for integrated thermal insulation composite structures.High-speed compressible flow/heat transfer coupling simulation of composite thermal structures with functionally gradient materials embedded was carried out under typical conditions.The infrared heating experiment of quartz lamp was carried out by testing functional gradient material with embedded layered temperature sensors.The influence of coupled heat transfer characteristics of composite thermal structures was obtained.The regulation mechanism of structural gradient characteristics on aerodynamic thermal load of aircraft was analyzed.It was found that under the condition of high Mach number air flow,the thermal insulation gradient material can better regulate the heat transport process inside the thermal insulation structure,which can not only prevent the instanta-neous surface from exceeding the temperature limit to cause thermal damage,but also achieve uniform changes in the internal temperature of the structure to avoid thermal mismatch.关键词
高马赫数/功能梯度材料/防隔热一体化/计算流体力学/热防护Key words
high Mach number/functionally graded material/thermal protection/insulation integration/computa-tional fluid dynamics/thermal protection分类
航空航天引用本文复制引用
杨肖峰,蔡兴考,刘磊,魏东,肖光明,杜雁霞,桂业伟..防热结构梯度特性对飞行器气动热载调控的耦合模拟与实验验证[J].航空学报,2025,46(9):160-171,12.基金项目
国家重点研发计划(2019YFA0405202) （2019YFA0405202）
国家自然科学基金(12072361) National Key Research and Development Plan(2019YFA0405202) （12072361）
National Natural Science Foundation of China(12072361) （12072361）
