本文分析了广杂质以及掺杂形态对固体发动机尾喷焰内Al2O3粒子辐射特性的影响.利用Bruggeman有效介质珲论研究了Al2O3粒子掺杂不同体积的炭黑后等效光学常数随温度的变化规律,考虑了粒子在熔点附近相态的变化,重点研究掺杂量对吸收指数的影响规律,发现随着含炭量增加,吸收指数逐渐增大.以米氏理论为基础研究了不同尺寸的含炭黑Al2O3粒子吸收因子的变化情况,发现在某一粒子尺寸参数(x=πD/λ)和复折射率组合下吸收因子的数值会出现峰值.
参考文献
[1] | S.Gosse;L.Hespe;P.Gossart;A.Delfour .Morphological Characterization and Particle Sizing of Alumina Particles in Solid Rocket Motor[J].Journal of Propulsion & Power,2006(1):127-135. |
[2] | 娄春,周怀春,朱国良,邵勇.煤粉炉内颗粒辐射特性的检测与分析[J].工程热物理学报,2007(z2):217-220. |
[3] | 韩茂华,梁新刚.球形粒子的近场辐射换热研究[J].工程热物理学报,2007(01):107-109. |
[4] | Plastinin Yu A;Sipatchev H Ph;Karabadzhak G F et al.Influence of Alumina Particles' Phase Transition on its Radiation in the Middle Infrared and Ultraviolet Regions of Spectrum[AIAA-2000-0735][R].,2000. |
[5] | Simmons F S.Rocket Exhaust Plume Phenomenology[M].California:The Aerospace Press,2000:173-198. |
[6] | Krishnan S;Weber J K R;Schiffman R A et al.Refractive Index of Liquid Aluminum Oxide at 0.6328 μm[J].Journal of the American Ceramic Society,1991,74(04):881-883. |
[7] | Oliver S M;Moylan B E .An Analytical Approach for the Prediction of Gamma-to-Alpha Phase Transformation of Aluminum Oxide (Al2O3) Particles in the Space Shuttle ASRM and RSRM exhausts[AIAA Paper 1992-2915][R].,1992. |
[8] | Choy T C.Effective Medium Theory:Principles and Applications[M].Oxford:Oxford University Press,1999:10-15. |
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