摘要
为探索基于铝粉燃料的连续旋转爆轰发动机独特的爆轰特性及推进性能,开展铝粉/空气和氢气/空气连续旋转爆轰发动机热试车对比实验。实验结果表明:在相同发动机构型及条件下,铝粉/空气连续旋转爆轰发动机的推力比氢气/空气高35%;铝粉/空气的峰值压强比氢气/空气高11%;铝粉/空气的爆轰波传播速度比氢气/空气低11%;铝粉/空气工作模态同氢气/空气一样,均为单波模态。上述差异一方面由燃料不同物理化学性质所致,另一方面由气-固两相爆轰和纯气相爆轰差异所致。所得研究结果可为吸气式粉末燃料连续旋转爆轰发动机奠定一定的实验和理论基础。
The aluminum/air and hydrogen/air rotating detonation engines(RDEs)are experimentally studied and compared to reveal the specific detonation characteristics and propulsion performance of aluminum powder RDE.The RDE engines work at the equivalence ratio of 1 and the air mass flow rate of 260 g/s.It's found that the thrust of aluminum/air RDE is 35%higher than that of hydrogen/air RDE;the pressure peak of aluminum/air is 11%higher than that of hydrogen/air;the detonation velocity of aluminum/air is 11%lower than that of hydrogen/air;and the detonation propagation mode of auminum/air is the same as that of hydrogen/air,which are single wave mode.The above differences are not only caused by the different properties of fuel,but also caused by the difference between the gas-solid two-phase detonation and the gaseous detonation.The experimental results could provide a feasible solution for the air breathing aluminum powder RDE and establish a foundation for the solid powder RDEs.
作者
续晗
罗永晨
倪晓冬
肖博文
张锋
苏晓杰
郑权
翁春生
XU Han;LUO Yongchen;NI Xiaodong;XIAO Bowen;ZHANG Feng;SU Xiaojie;ZHENG Quan;WENG Chunsheng(National Key Laboratory of Transient Physics,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China)
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2022年第5期1046-1053,共8页
Acta Armamentarii
基金
国家自然科学基金项目(12002167)
中央高校基本科研业务费专项资金资助项目(30919011259)
江苏省自然科学基金项目(BK20190468)。
关键词
粉末燃料连续旋转爆轰发动机
铝粉燃料
热试车实验
气-固两相爆轰
粉末爆轰
推进性能
爆轰特性
powder fuel rotating detonation engine
aluminum powder
firing test
gas-solid two-phase detonation
powder detonation
propulsion performance
detonation characteristics
