| 甲烷预混燃烧火焰的详细数值模拟 |
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| 引用本文： | 李宇红,祁海鹰,张宏武.甲烷预混燃烧火焰的详细数值模拟[J].工程热物理学报,2002,23(1):119-122. |
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| 作者姓名： | 李宇红 祁海鹰 张宏武 |
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| 作者单位： | 1. 清华大学热能工程系,北京,100084
2. 中国科学院工程热物理所,北京,100080 |
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| 基金项目： | 国家重大基础研究基金（973） 资助项目（NO．G1999022304） |
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| 摘 要： | 将六步简化甲烷燃烧反应模型与层流Ｎ－Ｓ方程相结合，数值模拟了定常与非定常的甲烷预混燃烧火焰．得到了速度、温度和包括ＣＯ和ＮＯ在内的十种组份的浓度分布；预测了进气流量脉动时的燃烧流场特性．该模型及其计算软件可较推确地模拟化学反应动力学起主导作用的甲烷预混燃烧现象，为研究燃烧过程特性，发展高效低污染燃烧技术与设备提供了有力的数值研究工具．
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| 关 键 词： | 甲烷燃烧六步简化化学反应动力学模型 N-S方程 预混燃烧 NO 动态火焰 |
| 文章编号： | 0253-231X(2002)01-0119-04 |
| 修稿时间： | 2001年3月12日 |
NUMERICAL SIMULATION OF PRE-MIXED FLAME OF METHAN |
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| LI Yu-Hong QI Hai-Ying ZHANG Hong-Wu.NUMERICAL SIMULATION OF PRE-MIXED FLAME OF METHAN[J].Journal of Engineering Thermophysics,2002,23(1):119-122. |
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| Authors: | LI Yu-Hong QI Hai-Ying ZHANG Hong-Wu |
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| Institution: | LI Yu-Hong1 QI Hai-Ying1 ZHANG Hong-Wu2 |
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| Abstract: | A systematically reduced six-step kinetics is presented and was implemented in a 3D layer Navier-Stokes code. With this reduced mechanism and code steady and unsteady premixed methane flames in a 2D matrix burner have been numerically simulated in details. Velocity, temperature and concentration distributions of ten species, including CO and NO have been obtained. The characteristics of transient combustion have also been predicted. This detailed flame combustion simulation is significant for precise combustion investigation and pollutant prediction, as well as for the development of new combustion technology and equipment. |
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| Keywords: | systematically reduced six-step kinetics of CH4 combustion N-S equations premixed combustion NO dynamic flame |
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