加力式涡扇发动机非加力状态部件红外辐射分析

黄伟; 吉洪湖

加力式涡扇发动机非加力状态部件红外辐射分析

黄伟^1,2,
吉洪湖¹

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

基金项目: 国防基础研究

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出版历程
- 收稿日期: 2009-11-23
- 修回日期: 2010-04-04
- 刊出日期: 2011-01-28

Analysis of components infrared radiation of afterburning turbofan engine under non-afterburning condition

HUANG Wei^1,2,
JI Hong-hu¹

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, The Chinese Peoples Liberation Army,Xuzhou 221000,China

摘要

摘要: 采用反向蒙特卡罗法计算分析了加力式涡扇发动机非加力状态各固体壁面的有效辐射强度(包括自身辐射强度和反射辐射强度)、燃气辐射强度以及总辐射强度特性,并对它们的分布规律进行了讨论分析.结果表明:在新计算分析的状态中,中心锥是探测角度小于15°时的主要红外辐射源,在尾向贡献了最大辐射强度的65%以上;在探测角小于20°的范围内,末级涡轮叶片和径向稳定器是次于中心锥的重要红外辐射源;喷管扩张段对整个后半球的红外辐射都有明显的贡献,尤其是探测角度大于20°以后;中心锥、末级涡轮叶片和径向稳定器等部件的反射辐射强度不足自身辐射强度的10%.
- 涡扇发动机 /
- 加力燃烧室 /
- 红外辐射 /
- 自身辐射 /
- 反射辐射 /
- 反向蒙特卡罗
Abstract: The effective infrared radiation intensity (self-radiation intensity and reflected radiation intensity),gas radiation intensity and total radiation intensity of afterburning turbofan engine under non-afterburning condition were calculated and analyzed using reverse Monte-Carlo method.The distributions of them were discussed and analyzed.The results show that,under the conditions given hereto,the cone is the strongest infrared radiation source,which contributes more than 65% to the maximum infrared radiation intensity;the turbine blade and radial flame holder are the second ones when the detective angle is less then 20°;the divergent part of nozzle plays an important role to the spatial distribution of infrared radiation towards the aft-hemisphere,especially in the region with detective angle bigger than 20°;the reflected radiation intensity of cone,turbine blade and radial are less than 10% of the self-radiation intensity.
- turbofan engine /
- afterburner /
- infrared radiation /
- self-radiation /
- reflected radiation /
- reverse Monte-Carlo

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参考文献(12)

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