| 磷化合物的火焰抑制中湍流混合作用数值研究 |
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| 引用本文： | 蒋勇,邱榕.磷化合物的火焰抑制中湍流混合作用数值研究[J].物理化学学报,2009,25(3):477-485. |
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| 作者姓名： | 蒋勇 邱榕 |
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| 作者单位： | State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, P. R. China |
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| 基金项目： | 国家自然科学基金，教育部新世纪优秀人才支持计划，国家科技支撑计划，中国科学技术大学青年基金 |
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| 摘 要： | 首先构筑了含磷化合物添加剂的甲烷氧化复杂化学动力学机理, 验证了该机理的可靠性, 进而采用随机Monto Carlo 概率密度函数PDF模拟, 详细计算了部分搅拌器中考虑湍流混合作用的磷化合物的火焰抑制行为, 讨论了湍流混合时间与驻留时间比τmix/τres对火焰结构的影响、熄火、以及包含关键火焰自由基重组的催化循环等问题.
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| 关 键 词： | 磷化合物 火焰抑制 湍流混合 |
| 收稿时间： | 2008-10-20 |
| 修稿时间： | 2008-11-19 |
A Numerical Study on Effects of Turbulent Mixing for Flame Inhibition by Phosphorus-Containing Compounds |
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| JIANG Yong,QIU Rong.A Numerical Study on Effects of Turbulent Mixing for Flame Inhibition by Phosphorus-Containing Compounds[J].Acta Physico-Chimica Sinica,2009,25(3):477-485. |
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| Authors: | JIANG Yong QIU Rong |
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| Institution: | State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, P. R. China |
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| Abstract: | The complex chemistry of a methane-air flame doped with phosphorus-containing compounds (PCCs) was determined and it was validated with experimental data. Modeling of partially stirred reactors (PaSR) by stochastic Monte Carlo simulations was carried out to investigate flame inhibition by PCCs considering the effects of turbulent mixing. Effects on flame structures were determined by varying the ratio τmix/τres (the residence time τres and the mixing time τmix). Numerical simulations were performed for a wide range of τmix and τres revealing extinction behaviors. A detailed investigation of catalytic cycles involved in the recombination of key flame radicals is discussed. |
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| Keywords: | Phosphorus-containing compound Flame inhibition Turbulent mixing |
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