高超声速乘波体飞行器机身/发动机一体化关键技术研究

An overview of research on engine/airframe integration for hypersonic waverider vehicles

飞行器在高空中作长时间巡航飞行时,对升阻比提出了极高要求,而高超声速乘波飞行器因其具有高升阻比、均匀的下表面流场以及高度一体化性能得到研究者重视,成为未来空间飞行器新的研究热点。简要介绍了高超声速乘波体飞行器机身/发动机一体化国内外研究进展,着重阐述了其关键技术及其研究,主要包括前体/进气道一体化技术、燃烧室构型优化技术和尾喷管/后体一体化技术,并对未来高超声速乘波体飞行器构型的进一步发展提出了设想——采用流线追踪思想,以Busemann进气道和圆形或椭圆形燃烧室作为其推进系统的两大重要组成部分,同时其机身具有膨胀上表面。

High lift-to-drag ratio is required for the vehicle cruising for long time at high altitude. More and more researchers have paid attention to hypersonic waverider vehicle for its high lift-to-drag ratio, uniform lower surface flow field and high integral performance. Hypersonic waverider vehicle has become the new research focus in the field of future aerospace plane. Its research and development progress is introduced briefly, and critical techniques researches pointed out in detail, mainly including forebody/inlet integration, optimization of eombustor configuration and nozzle/aftbody integration. And also the further development concept of configuration is put forward--adopting streamline tracing principle, Busemann inlet and round or elliptical combustor as two important parts of the propulsion system, and expansion upper surface airframe.