| 原木楞堆火灾烟温变化数值模拟研究 |
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| 引用本文： | 辛颖,薛伟.原木楞堆火灾烟温变化数值模拟研究[J].消防科学与技术,2011,30(3):183-186. |
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| 作者姓名： | 辛颖 薛伟 |
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| 作者单位： | 东北林业大学,工程技术学院,黑龙江,哈尔滨,150040 |
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| 基金项目： | 黑龙江省自然科学基金项目:东北林区贮木场火灾阴燃特性与智能预警系统研究(G200811); 东北林业大学青年科研基金:东北贮木场楞堆火灾特性与数值模拟研究(09015) |
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| 摘 要： | 采用大涡模拟燃烧模型,应用火灾动力学模拟软件FDS对原木楞堆燃烧过程中的温度场和烟气变化规律进行数值模拟研究。模拟结果表明,300 s后,原木楞堆燃烧由不稳定状态转变为稳定燃烧状态,烟气出现明显的分层;原木楞堆垂直上方温度与水平距离大致呈双Lorentzian曲线规律,而楞堆周围的水平空间保持一个稳定的温度值。
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| 关 键 词： | 原木楞堆 大涡模拟 温度场 烟气 FDS |
Research on numerical simulation of smoke and temperature movement in log pile fire |
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| XIN Ying,XUE Wei.Research on numerical simulation of smoke and temperature movement in log pile fire[J].Fire Science and Technology,2011,30(3):183-186. |
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| Authors: | XIN Ying XUE Wei |
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| Affiliation: | XIN Ying,XUE Wei(College of Engineering and Technology,Northeast Forest University,Heilongjiang Harbin 150040,China) |
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| Abstract: | Based on large eddy simulation combustion model,numerical simulation for the change disciplinarian of temperature field and smoke in the course of log pile combustion was studied by FDS.It was showed that after 300 s burning,the combustion turns from unsteady burning to steady,the layered smoke phenomenon appears.The relation between vertical top temperature of log pile and horizontal distance is in double Lorentzian curve disciplinarian,while the temperature of horizontal space around the log pile keeps be... |
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| Keywords: | log pile LES temperature field smoke FDS |
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