| 树冠火蔓延模型和数值分析 |
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| 引用本文： | 吴清松,童盛,周建军,刘幸东,徐燕侯.树冠火蔓延模型和数值分析[J].火灾科学,1996,5(2):29-34. |
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| 作者姓名： | 吴清松 童盛 周建军 刘幸东 徐燕侯 |
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| 作者单位： | 中国科学技术大学 |
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| 摘 要： | 本文计及森林多孔性燃烧床含水量和有机物含量，以及渗流气体的受热膨胀和质量源，建立了树冠火蔓延的一维物理模型，给出火蔓延的控制方程组和定解条件。通过数值分析，得到树冠火蔓延速度特性曲线，研究水份蒸发和有机物热解对树冠火蔓延速度的影响。
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| 关 键 词： | 树冠火 火蔓延速度 物理模型 数值分析 森林 |
A Model of Crown Fire Spreading and Numerical Analysis |
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| WU Qing-song,TONG Sheng,ZHOU Jian-jun,LIU Xing-dong and XU Yan-hou.A Model of Crown Fire Spreading and Numerical Analysis[J].Fire Safety Science,1996,5(2):29-34. |
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| Authors: | WU Qing-song TONG Sheng ZHOU Jian-jun LIU Xing-dong and XU Yan-hou |
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| Institution: | University of Science and Technology of China;University of Science and Technology of China;University of Science and Technology of China;University of Science and Technology of China;University of Science and Technology of China |
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| Abstract: | This paper presents a mathematical model of crown fire spreading.The effects of moisture vaporization and organic matter pyrolysis on crown fire spreading are discussed,and the characteristic curves are obtained by numerical calculation. |
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| Keywords: | Crown fire Fire spread rate Physical model Numerical analysis |
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