航空学报2026，Vol.47Issue(13)：26-48,23.DOI:10.7527/S1000-6893.2026.33007
超声速燃烧室凹腔构型优化研究进展
Research progress on cavity configuration optimization for supersonic combustors
摘要
Abstract
In air-breathing hypersonic vehicles,scramjet propulsion systems face core challenges such as fast and adequate fuel-supersonic airflow mixing,effective combustion,and robust flame stabilization.As one of the most widely used flame stabilization devices in scramjet combustors,the cavity shows a profound influence on the fuel mix-ing and combustion process,as well as the combustor performance.This paper systematically reviews research prog-ress on the effects of cavity configurations on flow characteristics and combustor performance in supersonic combus-tors.First,a concise overview of the supersonic cavity is introduced,including the basic configurations,the typical flow structures,and physical effects of the supersonic cavity.Second,the influence of fundamental cavity configura-tion parameters,including cavity length,depth,length-to-depth ratio,rear-wall inclination angle,and front-wall inclina-tion angle,on flow and combustion characteristics such as cavity recirculation zone structures,fuel residence time and flame stability is summarized and analyzed.Third,the optimization of two-dimensional cavity configurations is system-atically elaborated on the basis of three physical mechanisms:extension of recirculation zones/vortical structures;re-construction of shock/expansion wave systems;and modulation of shear layer dynamics.Furthermore,three-dimensional cavity optimization is discussed,with a focus on the streamwise vortex enhancement and lateral mass ex-change.Finally,recommendations are proposed for the configuration optimization and design of cavity flameholders,taking into account the current research status and technical bottlenecks.关键词
超燃冲压发动机/凹腔构型/燃烧室性能/混合增强/火焰稳定性Key words
scramjet/cavity configuration/combustor performance/mixing enhancement/flame stability分类
航空航天引用本文复制引用
周子旋,张林,孙明波,杨伟奇,乔竑玮,陈玉俏,张桐..超声速燃烧室凹腔构型优化研究进展[J].航空学报,2026,47(13):26-48,23.基金项目
湖南省科技创新计划(2025RC3138) （2025RC3138）
国家自然科学基金(12202487) Science and Technology Innovation Program of Hunan Province(2025RC3138) （12202487）
National Natural Science Foundation of China(12202487) （12202487）
