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| 火灾烟颗粒群多分散与单分散光散射模型的比较研究 | |
| 引用本文： | 张延岗,邓小玖,李耀东,孙悟,张永明.火灾烟颗粒群多分散与单分散光散射模型的比较研究[J].中国激光,2012,39(4):408004-168. |
| 作者姓名： | 张延岗 邓小玖 李耀东 孙悟 张永明 |
| 作者单位： | 张延岗:合肥工业大学电子科学与应用物理学院， 安徽 合肥 230009 邓小玖:合肥工业大学电子科学与应用物理学院， 安徽 合肥 230009 李耀东:中国科学技术大学火灾科学国家重点实验室， 安徽 合肥 230027 孙悟:合肥工业大学电子科学与应用物理学院， 安徽 合肥 230009 张永明:中国科学技术大学火灾科学国家重点实验室， 安徽 合肥 230027 |
| 基金项目： | 火灾科学国家重点实验室开放课题(HZ2009-KF08)和上海烟草集团开放课题(科2011-1-010)资助课题。 |
| 摘 要： | 基于T矩阵法,取入射激光的波长分别为300、633、800nm,对正庚烷火烟颗粒群分形结构的多分散模型、单分散模型以及等体积的球形模型的光散射Muller矩阵元素随散射角的分布特性进行了详细的比较分析。结果表明,当λ=300nm时,散射光能很好地反映正庚烷火烟颗粒凝团的分形结构及凝团中基本颗粒的分布特性;当λ=633nm时,正庚烷火烟颗粒群分形结构的多分散模型和单分散模型的光散射特性基本一致;当λ=800nm时,正庚烷火烟颗粒群3种模型的光散射特性趋于一致。 |
| 关 键 词： | 散射 火灾烟颗粒 T矩阵 光散射模型 |
| 收稿时间： | 2011/12/13 |
Comparative Study on Polydisperse and Monodisperse of Smoke Particles for Light Scattering Model |
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| Zhang Yan′gang,Deng Xiaojiu,Li Yaodong,Sun Wu,Zhang Yongming.Comparative Study on Polydisperse and Monodisperse of Smoke Particles for Light Scattering Model[J].Chinese Journal of Lasers,2012,39(4):408004-168. | |
| Authors: | Zhang Yan′gang Deng Xiaojiu Li Yaodong Sun Wu Zhang Yongming |
| Institution: | 1School of Electronic Science and Applied Physics,Hefei University of Technology,Hefei,Anhui 230009,China 2State Key Laboratory of Fire Science,University of Science and Technology of China,Hefei,Anhui 230027,China) |
| Abstract: | Based on the method of T-matrix, a detailed comparison of the distribution of light scattering Muller matrix elements with scattering angle on the polydisperse model, the monodisperse model and the equal-volume-sphere model of fractal structure of smoke particles is produced by flaming n-heptane, under the laser wavelength of 300, 633 and 800 nm respectively. The results show that scattering light could reflect the characteristics of the fractal structure of smoke particles and the distribution characteristics of primary particles in smoke particles when λ is equal to 300 nm, then the light scattering characteristics of fractal structure of polydisperse model and monodisperse model become identically when λ is equal to 633 nm, meanwhile, the light scattering characteristics of three models about the smoke particles produced by flaming n-heptane tend to be consistency when λ is equal to 800 nm. |
| Keywords: | scattering fire smoke particles T-matrix light scattering model |
| 本文献已被 CNKI 等数据库收录！ | |