湍流燃烧反应机理的简化

姜雪丽; 刘涛

湍流燃烧反应机理的简化

姜雪丽,
刘涛

北京航空航天大学动力系

基金项目: 国家自然科学基金资助项目(58976002)

详细信息

作者简介:
姜雪丽(1975-),女,辽宁沈阳人,硕士生,100083,北京.

中图分类号: V 231.2⁺1
计量
- 文章访问数: 2555
- HTML全文浏览量: 276
- PDF下载量: 1489
- 被引次数: 5
出版历程
- 收稿日期: 2000-09-07
- 网络出版日期: 2002-03-31

Simplification of Reaction Mechanism of Turbulent Combustion

Beijing University of Aeronautics and Astronautics, Dept. of Propulsion

摘要

摘要: 采用速率敏感度分析法分别对燃料为 CO/H₂和CH₃OH 的钝体绕流湍流扩散火焰的燃烧机理进行了简化.判断出了冗余组分,并通过对敏感度矩阵 F 的主成分分析,找出了次要反应,使原始的复杂湍流燃烧机理得到了大幅度的简化.简化机理与详细机理的计算结果吻合得很好.结果表明,速率敏感度分析的方法能大大简化复杂的湍流反应机理,且计算效率高,精度满足要求.
- 湍流 /
- 燃烧 /
- 反应机理 /
- 敏感度分析
Abstract: Chemical reaction mechanisms of turbulent non-premixed carbon monoxide/hydrogen and methanol bluff-body flame were simplified by rate sensitivity analysis method. By identifying the redundant species and unimportant reactions, the reaction kinetics was reduced greatly. Computational results of the reduced mechanisms exhibited good agreement with those of the detailed ones. This proves that the rate sensitivity analysis method can be used to reduce the complicated turbulent reaction mechanisms effectively and at a satisfactory precision.
- turbulence /
- combustion /
- reaction mechanism /
- sensitivity analysis

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参考文献(1)

[1]Tomlin A S, Pilling M J, Turanyi T, et al. Mechanism reduction for the oscillatory oxidation of hydrogen sensitivity and quasi-steady-state analyses [J]. Combustion and Flame, 1992, 91:107~130.[2]Turanyi T, Berces T, Vajda S. Reaction rate analysis of complex kinetic systems [J]. International Journal of Chemical Kinetics, 1989, 21:83~99.[3]Lutz A E, Kee R J, Miller J A. SENKIN:A fortran program for predicting homogeneous gas phase chemical kinetics with sensitivity Analysis. SAND 87-8248, Sandia National Laboratories, 1996.[4]Turanyi T. KINALC program. MECHMOD program. [5]Mass U, Pope S B. Simplifying chemical kinetics:Intrinsic low-dimensional manifolds in composition space [J]. Combustion and Flame, 1992,88:239~264.[6]Warnatz J, Mass U, Dibble R W. Combustion [M]. Berlin:Spring-Verlag,1996.

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