摘要
随着航天推进对高效性和经济性需求的增加,人们越来越希望能够研制出高推重比和高比冲的发动机。火箭基组合循环(RBCC)发动机融合了火箭发动机和冲压式发动机的优势,成为未来航空航天领域发展的重要方向。精确而高效的燃烧组织作为其关键技术之一,对RBCC宽速域内可靠运行具有重要意义。详细综述了RBCC燃烧组织的研究现状和进展,主要涉及燃料喷注方案、燃烧模式以及热力喉道调节3个方面。具体论述了不同工作模式下燃料的喷注方案以及热力喉道的调节技术,阐述了不同燃烧模式的研究进展,分析了RBCC燃烧组织研究过程中的难点和国内外在该方面的一些经验教训,指出了当前研究工作中存在的问题,并对研究思路提出了一些建议,以期对未来RBCC燃烧组织的研究提供一定的参考。
With the increased demand for efficiency and economy on aerospace propulsion,people are looking forward to developing an engine with high thrust-to-weight ratio and high specific impulse. Rocket based combined cycle(RBCC) engine becomes an important direction of development in the fields of aeronautics and astronautics, in which the advantages of rocket engine and ramjet engine are fused. Precise and highly efficient combustion organization is important for the wide range reliable operation and thrust increase of RBCC engine. In this paper, the fundamental concepts and principles of RBCC are introduced, and the research progress of combustion organization on RBCC is reviewed in the aspects of fuel injection scheme, combustion mode andthermal throat adjustment. The fuel injection schemes and thermal throat adjustment in different modes are discussed. The investigation situation of each combustion mode is elaborated. The difficulties and experience during the development of RBCC combustion organization are analyzed.Some suggestions for the study on RBCC in the future are given.
出处
《火箭推进》
CAS
2015年第4期1-7,共7页
Journal of Rocket Propulsion
关键词
火箭基组合循环(RBCC)
燃烧组织
燃料喷注方案
二次燃烧
热力喉道调节
rocket based combined cycle
combustion organization
fuel injection scheme
secondary combustion
adjustment of thermal throat
