| 值班甲烷/空气射流火焰的小火焰模型模拟 |
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| 引用本文： | 侯凌云,钟北京,姜长青.值班甲烷/空气射流火焰的小火焰模型模拟[J].航空动力学报,2005,20(6):994-999. |
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| 作者姓名： | 侯凌云 钟北京 姜长青 |
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| 作者单位： | 清华大学,航天航空学院,北京,100084 |
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| 基金项目： | 国家自然科学基金资助(50306011)，国家973专项经费资助(2002CB211600) |
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| 摘 要： | 将小火焰模型和假定的PDF方法相结合,模拟甲烷湍流射流扩散火焰,稳态火焰面结构由层流小火焰数据库得到,采用详细化学反应机理描述甲烷的氧化和NO以及碳烟的生成,数值模拟结果和实验数据吻合较好,说明小火焰模型可以较准确地计算出扩散湍流火焰中的燃烧过程。
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| 关 键 词： | 航空、航天推进系统 小火焰模型 湍流扩散火焰 详细化学反应机理 |
| 文章编号： | 1000-8055(2005)06-0994-06 |
| 收稿时间： | 2004/12/6 0:00:00 |
| 修稿时间： | 2004年12月6日 |
Flamelet Modeling of a Pilot Methane/Air Jet Flame |
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| HOU Ling-yun,ZHONG Bei-jing and JIANG Chang-qing.Flamelet Modeling of a Pilot Methane/Air Jet Flame[J].Journal of Aerospace Power,2005,20(6):994-999. |
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| Authors: | HOU Ling-yun ZHONG Bei-jing and JIANG Chang-qing |
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| Institution: | School of Aerospace,Tsinghua University,Beijing100084,China;School of Aerospace,Tsinghua University,Beijing100084,China;School of Aerospace,Tsinghua University,Beijing100084,China |
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| Abstract: | A methane turbulent non-premixed flame has been simulated numerically by the combination of laminar flamelet model and presumed probability density function(PDF).Steady flamelet structure was obtained from laminar flamelet library.Using the detailed chemical kinetics mechanism,the oxidation of methane and the generation of PAH and NO were described.Compared to the experimental data,it is shown that the numerical results agree well with the experiment and indicate that flamelet model approach is able to predict the major properties of the turbulent non-premixed flame. |
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| Keywords: | aerospace propulsion system flamelet model turbulent non-premixed flame detailed chemical kimetics mechanism |
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