对流辐射板抑制涡扇发动机热喷流红外辐射的实验

黄伟; 吉洪湖; 罗明东; 雷金果; 蔡旭; 高潮

对流辐射板抑制涡扇发动机热喷流红外辐射的实验

1.
南京航空航天大学能源与动力学院, 南京 210016
2.
徐州空军学院航空四站系, 徐州 221000

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出版历程
- 收稿日期: 2006-12-04
- 修回日期: 2007-01-24
- 刊出日期: 2007-12-28

Experiment of IR suppression for hot plume from turbofan engine with convection-radiation board

1.
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2.
Department of Aerial Four Stations, Xuzhou Air Force College, Xuzhou 221000, China

摘要

摘要: 用对流辐射换热板来降低混合排气涡扇发动机热喷流的红外辐射,并在涡扇发动机热喷流模拟实验台上进行了实验研究.测量了安装对流辐射换热板前后,轴对称喷管的热喷流的温度分布,轴对称喷管和二元喷管的热喷流在3～5 μm波段的红外辐射强度.结果表明:对流辐射换热板可以降低热喷流高温核心区的温度约10%,降低涡扇发动机热喷流的红外辐射强度约20%～30%.
- 航空、航天推进系统 /
- 热喷流 /
- 涡扇发动机 /
- 红外辐射(IR) /
- 二元喷管
Abstract: Convection-radiation board was employed to suppress the infrared radiation of hot plume from turbofan engine,while experimental research was conducted on the hot plume simulation test bench of turbofan engine.The temperature distribution of hot plume from a pure axisymmetric nozzle,and the spectral radiant intensities of hot plume in₃～5 μm from a pure axisymmetric nozzle and 2Dnozzles were measured.The results show that convection-radiation board could reduce the temperature of plume core about 10%,and also suppress the infrared radiation of hot plume from turbofan engine about 20%³0%.
- aerospace propulsion system /
- hot plume /
- turbofan engine /
- infrared radiation(IR) /
- 2D nozzle

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参考文献(12)

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