| 湍流预混火焰传播速度的分形模型研究 |
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| 引用本文： | 杨宏晻,顾,刘勇,徐益谦.湍流预混火焰传播速度的分形模型研究[J].工程热物理学报,2001,22(4):507-510. |
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| 作者姓名： | 杨宏晻 顾 刘勇 徐益谦 |
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| 作者单位： | 东南大学热能工程研究所 |
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| 基金项目： | 973国家重点基础研究发展规划基金项目资助（No．G1999022206） |
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| 摘 要： | 本文利用激光层析技术和数字图像处理技术，在对Ｒｅｄ＝４３３５～１１１００范围内的Ｂｕｎｓｅｎ式湍流预混火焰热图像序列进行分形分析的基础上，提出了一种基于分形理论的湍流预混火焰传播速度模型，该模型将小尺度涡团在火焰锋面的强化湍流扩散效应归结为对锋面结构的改变上。结果表明：利用该模型预测的火焰传播速度与试验结果基本吻合。
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| 关 键 词： | 湍流预混火焰 分形特性 传播速度 模型 |
| 文章编号： | 0253-231(2001)04-0507-04 |
| 修稿时间： | 2001年1月11日 |
THE INVESTIGATION ON FRACTAL MODEL OF THE PROPAGATING SPEED OF TURBULENT PREMIXED FLAME |
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| YANG Hong-Min,GU Fan,LIU Yong,XU Yi-Qian.THE INVESTIGATION ON FRACTAL MODEL OF THE PROPAGATING SPEED OF TURBULENT PREMIXED FLAME[J].Journal of Engineering Thermophysics,2001,22(4):507-510. |
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| Authors: | YANG Hong-Min GU Fan LIU Yong XU Yi-Qian |
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| Abstract: | The laser topography technology and the digital image processing technique were applied to investigate the structure characteristics of the turbulent flame. Based on our previous works on the fractal analysis of the turbulent flame with Reynold number from 4335-11100, a novel model of the propagating speed of turbulent flame was proposed here. The intensive transport effects of small scale turbulent vortexes was embodied through the change of structure on front of flames. The result showed that the predication results of the propagating speed were in good agreement with the experimental data. |
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| Keywords: | turbulent premixed flame fractal propagating speed model |
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