| 火灾烟颗粒分形模型和球形模型光散射的比较研究 |
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| 引用本文： | 张青,邓小玖,张启兴,李耀东,张永明.火灾烟颗粒分形模型和球形模型光散射的比较研究[J].海洋学报,2010,32(10):7442-7446. |
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| 作者姓名： | 张青 邓小玖 张启兴 李耀东 张永明 |
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| 作者单位： | 合肥工业大学电子科学与应用物理学院,合肥 230009; 中国科学技术大学火灾科学国家重点实验室,合肥 230027;合肥工业大学电子科学与应用物理学院,合肥 230009;中国科学技术大学火灾科学国家重点实验室,合肥 230027;合肥工业大学电子科学与应用物理学院,合肥 230009;中国科学技术大学火灾科学国家重点实验室,合肥 230027 |
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| 基金项目： | 国家自然科学基金(批准号:50776084)和高等学校博士学科点专项科研基金(批准号:20060358018)资助的课题. |
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| 摘 要： | 对烟颗粒的光散射进行模拟计算是研究火灾烟颗粒光散射特性的重要手段,目前对于火灾烟颗粒光散射的数值计算多采用球形或椭球模型.实际上,火灾烟颗粒的形貌与球形和椭球均存在着显著差异.扫描电子显微镜图像表明,烟颗粒具有近似分形的结构.本文利用离散偶极近似方法计算了随机取向的火灾烟颗粒分形凝团以及同体积的球形颗粒的光散射Muller矩阵,并对两者的归一化Muller矩阵元素随散射角的分布进行了比较.研究表明:火灾烟颗粒分形模型和球形模型的归一化矩阵元素F11(θ)/F11
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| 关 键 词： | 感烟探测 火灾烟颗粒 分形模型 球形模型 |
Comparative study on fractal model and spherical modelof fire smoke particles for light scattering |
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| Zhang Qing,Deng Xiao-Jiu,Zhang Qi-Xing,Li Yao-Dong and Zhang Yong-Ming.Comparative study on fractal model and spherical modelof fire smoke particles for light scattering[J].Acta Oceanologica Sinica (in Chinese),2010,32(10):7442-7446. |
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| Authors: | Zhang Qing Deng Xiao-Jiu Zhang Qi-Xing Li Yao-Dong and Zhang Yong-Ming |
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| Institution: | Optical Engineering, School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China; State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, China;Optical Engineering, School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China;State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, China;Optical Engineering, School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China;State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, China |
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| Abstract: | |
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| Keywords: | smoke detection fire smoke particle fractal model spherical model |
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