航空氨氢转子发动机燃烧仿真分析
Combustion Simulation Analysis on an Aviation Ammonia-Hydrogen Rotary Engine
摘要
Abstract
To investigate the influence mechanism of hydrogen blending ratios on combustion characteristics of an aviation ammonia-hydrogen rotary engine under high-altitude conditions,a three-dimensional simulation model was developed in CONVERGE based on an in-cylinder swash-plate rotary engine.This model was employed to analyze combustion and emission processes at hydrogen blending ratios of 13％～29％under constant operating condition,i.e.6 000 m altitude,6 000 r/min engine speed,1.2 equivalence ratio and-20° ignition timing.Simulation results showed that increasing hydrogen blending ratios significantly improved the flame propagation velocity.The peak in-cylinder pressure increased from 2.7 MPa at 13％hydrogen blending ratio to 6.3 MPa at 29％hydrogen blending ratio,and the peak exothermic rate increased from 3 J/(°)to 23 J/(°).The combustion duration was shortened,and the generation of NO increased with the increase in the hydrogen blending ratio,while the emissions of NO 2 and unburned ammonia decreased.Elevating hydrogen blending ratios can effectively optimize the combustion phase,and enhance the combustion stability,though increased NO emissions should be considered.关键词
氨氢燃料/转子发动机/高海拔/燃烧/仿真Key words
hydrogen ammonia fuel/rotary engine/high altitude/combustion/simulation分类
能源科技引用本文复制引用
丁联广,刘骁,柳平,邓涛..航空氨氢转子发动机燃烧仿真分析[J].内燃机工程,2026,47(3):70-79,10.基金项目
国家自然科学基金项目(52275051) （52275051）
重庆市技术创新与应用发展专项重大项目(CSTB2024TIAD-STX0018,CSTB2025TIAD-STX0013) （CSTB2024TIAD-STX0018,CSTB2025TIAD-STX0013）
重庆市教育委员会科学技术研究重大项目(KJZD-M202400703) （KJZD-M202400703）
重庆交通大学自然科学类揭榜挂帅项目(XJ2023000701) （XJ2023000701）
重庆市研究生导师团队建设项目(JDDSTD2022007) （JDDSTD2022007）
重庆市研究生联合培养基地建设项目(JDLHPYJD2022001,JDLHPYJD2023002)National Natural Science Foundation of China(52275051) （JDLHPYJD2022001,JDLHPYJD2023002）
Science and Technology Innovation Key R&D Program of Chongqing(CSTB2024TIAD-STX0018,CSTB2025TIAD-STX0013) （CSTB2024TIAD-STX0018,CSTB2025TIAD-STX0013）
Major Project of Science and Technology Research Program of Chongqing Education Commission of China(KJZD-M202400703) （KJZD-M202400703）
Natural Science Ranking Projects of Chongqing Jiaotong University(XJ2023000701) （XJ2023000701）
Team Building Project for Graduate Tutors in Chongqing(JDDSTD2022007) （JDDSTD2022007）
Joint Training Base Construction Project for Graduate Students in Chongqing(JDLHPYJD2022001,JDLHPYJD2023002) （JDLHPYJD2022001,JDLHPYJD2023002）
