航空学报2026，Vol.47Issue(17)：1-33,33.DOI:10.7527/S1000-6893.2026.33429
金属燃料及其在冲压发动机中的应用综述
Review on metal fuels and its application in ramjet engines
摘要
Abstract
Metal fuels,with their high energy density,show significant advantages in improving engine specific im-pulse and thrust,and have become a frontier in propulsion technology research.This paper reviews the characteris-tics,fuel forms,and the progress in the application of metal fuels in ramjet engines.The physicochemical characteris-tics and energy performance of common metal fuels such as lithium,beryllium,boron,magnesium,and aluminum are analyzed.The working mechanisms,performance characteristics,and advantages and disadvantages of the pill-type and powder-type metal fuel forms are compared.This paper focuses on summarizing the application of metal fu-els in air ramjet engines,water ramjet engines,and cross-medium engines.The test and numerical simulation results of combustion organization,flow field optimization,and performance enhancement from both domestic and interna-tional research are classified and summarized.Furthermore,the current technical challenges are revealed.A sum-mary and outlook on the key technical challenges in the combustion organization of metal fuel engines are presented.This provides reference for future research and engineering applications of metal fuels.关键词
金属燃料/动力系统/空气冲压发动机/水冲压发动机/跨介质发动机Key words
metal fuels/propulsion system/air ramjet engine/water ramjet engine/cross-medium engine分类
航空航天引用本文复制引用
刘平安,刘尚,庞爱民,杨玉新,武志文,闫涛,惠士轩,徐珂靖..金属燃料及其在冲压发动机中的应用综述[J].航空学报,2026,47(17):1-33,33.基金项目
国家自然科学基金(22305053) National Natural Science Foundation of China(22305053) （22305053）
