无加力涡扇发动机二元喷管的红外辐射特性实验
An experimental investigation on infrared radiation characteristics of 2-D nozzles of turbofan engine afterburner
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摘要: 对轴对称喷管和一组长宽比分别为1,4,8,12和16的二元喷管进行了红外辐射特性测试实验研究。喷管中的气流由主流燃气和次流空气组成,用以模拟涡扇发动机的喷管。得出了二元喷管的红外辐射强度的空间分布,并且将二元喷管和轴对称喷管的红外辐射强度进行了比较。Abstract: The infrared radiation characteristics of axisymmetric and 2-D nozzles with aspect ratios of 1,4,8,12 and 16,have been experimentally studied.The nozzle flow is composed of the main gas stream and the secondary air stream in order to simulate the nozzle of turbofan engine.The spatial distributions of the infrared radiation intensity of 2-D nozzles have been obtained,and compared with that of the axially symmetric nozzles.
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Key words:
- aerospace propulsion system /
- infrared radiation /
- 2-D nozzle /
- turbofan engine
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[1] 胡传炘.隐身涂层技术[M].北京:化学工业出版社,2004. [2] 徐南荣,卞南华.红外辐射与制导[M].北京:国防工业出版社,1997. [3] Abolfadl M A.Analysis and design optimization of flow in circular-to-rectangular transition ducts[R].AIAA-88-0304,1988. [4] 张勃.大宽高比矩形喷管的射流掺混与红外抑制特性研究[D].江苏南京:南京航空航天大学,2005. [5] Chu C W,Wun W A.Simple 2D-nozzle plume for IR analysis[R].AIAA-80-1808. [6] 张海星,张建奇,杨伟,等.二元喷管尾焰红外辐射的理论计算[J].西安电子科技大学学报,1998,25(1):39-42.Zhang Haixing,Zhang Jianqi,Yang Wei,et al.A theoretical calculation of the IR radiation of the 2D-nozzle plume[J].Journal of Xidian University,1998,25(1):39-42. [7] 山其骧,卜满.热喷流红外辐射特性的测试实验研究[J].南京航空航天大学学报,1995,27(6):791-796.Shan Qixiang,Bu Man.The experiment study on the infrared radiation characteristics from hot jet[J].Journal of Nanjing University of Aeronautics and Astronautics,1995,27(6):791-796. [8] 郑礼宝.全尺寸二元喷管红外辐射特性研究[J].航空学报,2002,23(2):140-142.Zheng Libao.Infrared emission from turbojet with two-dimensional Nozzle[J].Acta Aeronautica et Astronautica Sinica.2002,23(2):140-142. [9] 金捷,朱谷君,徐南荣,等.发动机高速排气系统红外辐射特性的数值计算与分析[J].航空动力学报,2002,17(5):582-585.Jin Jie,Zhu Gujun,Xu Nanrong,et al.Numerical simulation of infrared radiation characteristics for aeroengine high-speed exhaust system[J].Journal of Aerospace Power,2002,17(5):582-585.
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