高超声速飞行器综合热效应问题

Combined thermal phenomena of hypersonic vehicle

综合热效应会导致高超声速飞行器多物理场间的时-空强耦合效应更加显著,是未来长航时高超声速飞行器研制中将面临的一个重要问题.本文阐述了综合热效应问题的内涵,结合飞行器多系统耦合现象的物理链路,详细阐述了综合热效应问题的物理本质和预测方法,讨论分析了气动热、气动/结构/轨道耦合等影响综合热效应的关键问题,介绍了耦合实验研究方面的新进展,并对考虑新型复合防热材料跨尺度效应、基于多因素耦合方法的多系统优化设计、舱内热效应对防热系统的影响等综合热效应的外延与拓展问题进行了讨论.

The combined thermal phenomena are a series of multi-factor coupling phenomena caused by the structural thermal response under the cumulative action of aerodynamic heating. The combined thermal phenomena, which will lead to a more significant time-space coupling effect on the multiple physics of hypersonic vehicle, is an important issue in the development of long-haul hypersonic vehicle in the future. This paper describes the connotation of the combined thermal phenomena by combining with the physical link of the aircraft system coupling phenomenon. The physical essence and prediction methods of the combined thermal problem are expounded in detail. The key issues affecting the combined thermal problem such as aerodynamics, aerodynamics/structure/trajectory coupling are discussed. The new progress in the research of coupling experimental verification is introduced. The extension of the combined thermal problem such as the multi-scale effect of the new composite thermal protection materials, the multi-system optimization design based on the multi-factor coupling method, and the influence of the cabin thermal effect on the heat protection system are discussed.