对于非均匀吸收、发射、无散射的轴对称含烟黑火焰对象,常规双色法不再适用.本文基于烟黑辐射特性,提出并模拟研究了同时重建火焰温度与烟黑容积份额的新的辐射测量方法.从重建结果看,重建误差主要集中在火焰中心区域,这是观测路径上测量误差累积的结果.温度重建主要受火焰断面参数分布类型影响,而烟黑容积份额重建主要受测量误差的影响,这由它们与单色辐射强度的内在关系所决定.
参考文献
[1] | Bengtsson PE .Simultaneous Two-Dimensional Visualization of Soot and OH in Flames Using Laser-Induced Fluorescence[J].Applied Spectroscopy,1996,50(09):1182-1186. |
[2] | De Iuliis S.;Benecchi S.;Cignoli F.;Zizak G.;Barbini M. .Determination of the soot volume fraction in an ethylene diffusion flame by multiwavelength analysis of soot radiation[J].Combustion and Flame,1998(1/2):253-261. |
[3] | 陈硕,刘明安,潘克煜,马震,张镇顺.多参数对柴油机缸内局部瞬态火焰温度及碳粒浓度的影响[J].内燃机学报,2001(02):128-132. |
[4] | Correia DP;Ferrao P;Caldeira-Pires A et al.Flame Three-Dimensional Tomography Sensor for in-Furnace Diagnostics[J].Proceedings of the Combustion Institute,2000,28:431-438. |
[5] | Liu Lin-Hua;Man Guang-Long .Reconstruction of TimeAveraged Temperature of Non-Axisymmetric Turbulent Un-Confined Sooting Flame by Inverse Radiation Analysis[J].Journal of Quantitative Spectroscopy and Radiative Transfer,2003,78:139-149. |
[6] | Huai-Chun Zhou;Shu-Dong Han .Simultaneous reconstruction of temperature distribution, absorptivity of wall surface and absorption coefficient of medium in a 2-D furnace system[J].International Journal of Heat and Mass Transfer,2003(14):2645-2653. |
[7] | Shahad HAK;Mohammed YKA .Investigation of SootFormation and Temperature Field in Laminar Diffusion Flames of LPG-Air Mixture[J].Energy Conversion and Management,2000,41:1897-1916. |
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