亚燃冲压模型燃烧室高空负压试验

推进技术 ›› 2012, Vol. 33 ›› Issue (1): 69-72.

亚燃冲压模型燃烧室高空负压试验

邓远灏,钟华贵,徐华胜,钟世林

南京航空航天大学能源与动力学院,江苏南京 210016;中国燃气涡轮研究院,四川成都 610500;中国燃气涡轮研究院,四川成都 610500;中国燃气涡轮研究院,四川成都 610500;中国燃气涡轮研究院,四川成都 610500

发布日期:2021-08-15
作者简介:邓远灏(1979—),男,博士,高级工程师,研究领域为发动机燃烧。E-mail:Dengyuanhao_gte@163.com

Experiment of Ramjet Model Combustor Under High Altitude and Low Pressure Condition

College of Energy and Power, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;China Gas Turbine Establishment, Chengdu 610500, China;China Gas Turbine Establishment, Chengdu 610500, China;China Gas Turbine Establishment, Chengdu 610500, China;China Gas Turbine Establishment, Chengdu 610500, China

Published:2021-08-15

摘要/Abstract

摘要： 为了验证亚燃冲压燃烧室在高空负压条件下稳定工作的能力,设计了带蒸发式值班火焰稳定器与直射式喷油装置的亚燃冲压模型燃烧室,对该模型燃烧室进行了冷态流阻试验、贫油熄火边界试验以及不同截面燃烧效率试验研究。研究结果表明,试验件的冷态流阻系数略大于1,冷态总压恢复系数0.98以上；蒸发式火焰稳定器贫油熄火边界较宽；两截面燃烧效率最低相差6%,最高相差19%,在高空负压条件下,增加燃烧段长度能显著提高燃烧效率。

关键词: 亚燃冲压燃烧室;冷态流阻系数;冷态总压恢复系数;贫油熄火边界;燃烧效率

Abstract: Cold flow resistance experiment, lean blowout experiment and combustion efficiency experiment were conducted on ramjet model combustor with evaporative flame holder and direct fuel injection. Through these experiments, the ability of ramjet combustor stabilization under high altitude and low pressure condition was validated. The investigation results show that the coefficient of cold flow resistance is slightly more than 1 and the coefficient of cold total pressure recovery is more than 0.98. The lean blowout of the evaporative flame holder is wide. The least difference of combustion efficiency of two sections is 6% and the most difference is 19%. Combustion efficiency is evidently enhanced by increasing combustion length under high altitude and low pressure condition.

Key words: Ramjet combustor; Coefficient of cold flow resistance; Coefficient of cold total pressure recovery; Lean blowout; Combustion efficiency

邓远灏,钟华贵,徐华胜,钟世林. 亚燃冲压模型燃烧室高空负压试验[J]. 推进技术, 2012, 33(1): 69-72.