详细反应机理的航空发动机二维燃烧流场计算

侯宽新; 刘勇; 赵坚行

详细反应机理的航空发动机二维燃烧流场计算

1.
中国民航飞行学院广汉分院, 广汉 618307
2.
南京航空航天大学能源与动力学院, 南京 210016

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- 被引次数: 0
出版历程
- 收稿日期: 2008-12-03
- 修回日期: 2009-01-09
- 刊出日期: 2009-12-28

Two-dimensional numerical simulation of reactive flow in aero-engine combustor with detailed chemical kinetic mechanisms

1.
Guanghan Flight College, Civil Aviation Flight University of China, Guanghan 618307, China
2.
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 对某航空发动机主燃烧室简化模型进行了基于正庚烷(n-C₇H₁₆)详细反应机理的燃烧流场数值模拟.在二维贴体坐标系下,计算过程采用了k-ε双方程模型来预估湍流特性,用EDC(eddy dissipation con-cept)湍流燃烧模型预估反应速率,用PSR(perfectly stirred reactor)模型的方法处理复杂化学反应项,得出了基于详细反应机理的温度场、组分浓度场,验证了机理文件中反应的某些组分与特定自由基之间的关系,对比了总包反应EBU-SRK(eddy break up-simplified reaction kinetics)的温度场,结果基本相符.
- 化学反应模型 /
- 详细反应机理 /
- EDC(eddy dissipationconcept)模型 /
- PSR(perfectly stirredreactor)模型 /
- 正庚烷 /
- 数值分析
Abstract: The paper presented a numerical simulation of turbulent flow in a reduced aero-engine combustor model with the detailed chemical kinetic mechanisms of n-C₇H₁₆.Under the two-dimensional body-fitted grid,the turbulent characteristics were estimated by k-ε equations,the reacting rate was estimated by eddy dissipation concept(EDC) model.In the paper the reacting model was perfectly stirred reactor(PSR),the concentrations of the major components and thermal flow results were gotten,and the relationship between some certain components validated the feasibility.The results of the EDC model basically agree with the one-step reactions with EBU-SRK(eddy break up-simplified reaction kinetics) model.
- chemical reaction model /
- detailed chemical kinetic mechanisms /
- EDC(eddy dissipation concept) model /
- PSR(perfectly stirred reactor) model /
- n-heptane /
- numerical analysis

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参考文献(7)

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