超级军网丝带化冻鸡尾喷反射辐射强度不知是否与此文有关？嘿嘿
来源：百度文库 编辑：超级军网 时间：2024/04/29 12:04:09
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）
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%.
关键词：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
中图分类号：O3433；V2311文献标识码：A
Analysis of components infrared radiation of afterburning
turbofan engine under nonafterburning condition
HUANG Wei1,2,JI Honghu1
(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 Peoples Liberation Army,Xuzhou 221000,China)
Abstract：The effective infrared radiation intensity (selfradiation intensity and reflected radiation intensity),gas radiation intensity and total radiation intensity of afterburning turbofan engine under nonafterburning condition were calculated and analyzed using reverse MonteCarlo 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 afthemisphere,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 selfradiation intensity.
Key words: turbofan engine;afterburner;infrared radiation;selfradiation;
reflected radiation;reverse MonteCarlo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）
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%.
关键词：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
中图分类号：O3433；V2311文献标识码：A
Analysis of components infrared radiation of afterburning
turbofan engine under nonafterburning condition
HUANG Wei1,2,JI Honghu1
(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 Peoples Liberation Army,Xuzhou 221000,China)
Abstract：The effective infrared radiation intensity (selfradiation intensity and reflected radiation intensity),gas radiation intensity and total radiation intensity of afterburning turbofan engine under nonafterburning condition were calculated and analyzed using reverse MonteCarlo 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 afthemisphere,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 selfradiation intensity.
Key words: turbofan engine;afterburner;infrared radiation;selfradiation;
reflected radiation;reverse MonteCarlo
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）
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%.
关键词：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
中图分类号：O3433；V2311文献标识码：A
Analysis of components infrared radiation of afterburning
turbofan engine under nonafterburning condition
HUANG Wei1,2,JI Honghu1
(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 Peoples Liberation Army,Xuzhou 221000,China)
Abstract：The effective infrared radiation intensity (selfradiation intensity and reflected radiation intensity),gas radiation intensity and total radiation intensity of afterburning turbofan engine under nonafterburning condition were calculated and analyzed using reverse MonteCarlo 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 afthemisphere,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 selfradiation intensity.
Key words: turbofan engine;afterburner;infrared radiation;selfradiation;
reflected radiation;reverse MonteCarlo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）
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%.
关键词：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
中图分类号：O3433；V2311文献标识码：A
Analysis of components infrared radiation of afterburning
turbofan engine under nonafterburning condition
HUANG Wei1,2,JI Honghu1
(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 Peoples Liberation Army,Xuzhou 221000,China)
Abstract：The effective infrared radiation intensity (selfradiation intensity and reflected radiation intensity),gas radiation intensity and total radiation intensity of afterburning turbofan engine under nonafterburning condition were calculated and analyzed using reverse MonteCarlo 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 afthemisphere,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 selfradiation intensity.
Key words: turbofan engine;afterburner;infrared radiation;selfradiation;
reflected radiation;reverse MonteCarlo
貌似此文也有关，有关么？这个可以有？我不知道。
孔隙分布对陶瓷材料热辐射特性的影响
李东辉，夏新林
（哈尔滨工业大学 能源科学与工程学院，哈尔滨 150001）
摘要：通过引入吸收性介质内粒子散射Mie理论，结合多弥散粒子系独立散射理论，针对孔隙具有修正Gamma分布规律的多孔陶瓷提出一种计算热辐射特性的方法，以氧化锆陶瓷为例分析了孔隙分布对热辐射特性的影响.结果表明孔隙分布规律和平均孔径对热辐射特性有显著影响.孔径趋于单弥散分布，将使衰减系数、散射反照率、非对称因子等参数减小，而孔径趋于指数分布，这些参数显著提高.当波长较小时，衰减系数随平均孔径先增大后减小，当波长较大时，衰减系数随平均孔径增大而减小；散射反照率和非对称因子均随平均孔径增大而增大.
关键词：热辐射特性；陶瓷材料；电磁散射；多弥散；Mie理论；吸收介质
中图分类号：V2311文献标识码：A
Influences of pores distribution on thermal radiation
properties of ceramic materials
LI Donghui，XIA Xinlin
(School of Energy Science and Engineering,
Harbin Institute of Technology，Harbin 150001，China)
Abstract：A rigid Mie solution on scattering by a spherical particle immersed in an absorbing medium was introduced. By combining with independent scattering discipline for polydisperse particles, a theoretical method was presented for calculating thermal radiation properties of ceramics with pores in modified Gamma distribution. Influences of pores distribution and mean diameter on thermal radiation properties of a specific Yt stablized zirconium (YSZ) were analyzed. Results show that pores distribution and mean diameter have significant influences on thermal radiation properties of the ceramic. Extinction coefficient, scattering albedo and asymmetry factor decreases with pores distribution approaching mono dispersion and increases with pores distribution approaching poly dispersion. An optimal mean diameter of pores exists for extinction coefficient in short wavelength while the coefficient decreases with pores mean diameter in long wavelength. Both scattering albedo and asymmetry factor increase with pores mean diameter.
Key words: thermal radiation property;ceramic material；electromagnetic scattering;
polydisperse;Mie solution;absorbing medium.
孔隙分布对陶瓷材料热辐射特性的影响
李东辉，夏新林
（哈尔滨工业大学 能源科学与工程学院，哈尔滨 150001）
摘要：通过引入吸收性介质内粒子散射Mie理论，结合多弥散粒子系独立散射理论，针对孔隙具有修正Gamma分布规律的多孔陶瓷提出一种计算热辐射特性的方法，以氧化锆陶瓷为例分析了孔隙分布对热辐射特性的影响.结果表明孔隙分布规律和平均孔径对热辐射特性有显著影响.孔径趋于单弥散分布，将使衰减系数、散射反照率、非对称因子等参数减小，而孔径趋于指数分布，这些参数显著提高.当波长较小时，衰减系数随平均孔径先增大后减小，当波长较大时，衰减系数随平均孔径增大而减小；散射反照率和非对称因子均随平均孔径增大而增大.
关键词：热辐射特性；陶瓷材料；电磁散射；多弥散；Mie理论；吸收介质
中图分类号：V2311文献标识码：A
Influences of pores distribution on thermal radiation
properties of ceramic materials
LI Donghui，XIA Xinlin
(School of Energy Science and Engineering,
Harbin Institute of Technology，Harbin 150001，China)
Abstract：A rigid Mie solution on scattering by a spherical particle immersed in an absorbing medium was introduced. By combining with independent scattering discipline for polydisperse particles, a theoretical method was presented for calculating thermal radiation properties of ceramics with pores in modified Gamma distribution. Influences of pores distribution and mean diameter on thermal radiation properties of a specific Yt stablized zirconium (YSZ) were analyzed. Results show that pores distribution and mean diameter have significant influences on thermal radiation properties of the ceramic. Extinction coefficient, scattering albedo and asymmetry factor decreases with pores distribution approaching mono dispersion and increases with pores distribution approaching poly dispersion. An optimal mean diameter of pores exists for extinction coefficient in short wavelength while the coefficient decreases with pores mean diameter in long wavelength. Both scattering albedo and asymmetry factor increase with pores mean diameter.
Key words: thermal radiation property;ceramic material；electromagnetic scattering;
polydisperse;Mie solution;absorbing medium.
2楼惊现母校 威武！
有英文6级的专业帝来翻译么
有英文6级的专业帝来翻译么
看不懂方言
对尾气仍有一定的包裹.
关键词：航空、航天推进系统；等离子体；诱导磁场方程；收敛喷管；对流传热；推力系数
中图分类号：V2311文献标识码：A
Influence of magnetic plasma on performances of
the convergent nozzle
ZHANG Yan, HUANG Hulin
(Academy of Frontier Science,
Nanjing University of Aeronautics and Astronautics, Nanjing 210016，China)
Abstract：The characteristics of flow and heat transfer for plasma controlled by external magnetic fields in the convergent nozzle and the jet wrapped by the plasma were simulated using the models of magnetic induction equation, the multiphase flow mixture and modified turbulent twoequations under magnetic forces. The results show that the plasma volume fraction decreases with the acceleration of flow in the convergent nozzle. Magnetic intensity increase may improve the plasma volume fraction near the wall and suppress its turbulence strength, thereby cutting down the increase of nozzle wall temperature effectively. The rising wall temperature is reduced by 54.4%, the thrust coefficient is increased by 0.74% and the jet is still wrapped at 4D* from the nozzle exit after applying the 1.3 T magnetic field.
Key words：aerospace propulsion system; plasma; magnetic induction equation;
convergent nozzle; convective heat transfer; thrust coefficient
关键词：航空、航天推进系统；等离子体；诱导磁场方程；收敛喷管；对流传热；推力系数
中图分类号：V2311文献标识码：A
Influence of magnetic plasma on performances of
the convergent nozzle
ZHANG Yan, HUANG Hulin
(Academy of Frontier Science,
Nanjing University of Aeronautics and Astronautics, Nanjing 210016，China)
Abstract：The characteristics of flow and heat transfer for plasma controlled by external magnetic fields in the convergent nozzle and the jet wrapped by the plasma were simulated using the models of magnetic induction equation, the multiphase flow mixture and modified turbulent twoequations under magnetic forces. The results show that the plasma volume fraction decreases with the acceleration of flow in the convergent nozzle. Magnetic intensity increase may improve the plasma volume fraction near the wall and suppress its turbulence strength, thereby cutting down the increase of nozzle wall temperature effectively. The rising wall temperature is reduced by 54.4%, the thrust coefficient is increased by 0.74% and the jet is still wrapped at 4D* from the nozzle exit after applying the 1.3 T magnetic field.
Key words：aerospace propulsion system; plasma; magnetic induction equation;
convergent nozzle; convective heat transfer; thrust coefficient