| CSP分析方法在简化燃烧化学反应系统中的应用 |
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| 引用本文： | 王彬彬,蒋勇,邱榕.CSP分析方法在简化燃烧化学反应系统中的应用[J].物理化学学报,2008,24(12):2221-2228. |
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| 作者姓名： | 王彬彬 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
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教育部新世纪优秀人才支持计划
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国家科技支撑计划
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| 摘 要： | 基于计算奇异摄动(CSP)思想, 对甲烷/空气预混燃烧系统进行分析. CSP将反应空间分裂, 消除刚性; 将单点分析和全局分析相结合, 合理选择主要组分和稳态物质, 使用CSP的特征指数简化方程. 构建了针对甲烷/空气预混燃烧系统的总包15步反应机理, 并利用Sandia实验室的PREMIX软件包对该系统进行分析, 验证了简化机理的准确性, 证实了CSP分析方法在燃烧系统中应用的可靠性和优越性, 并为研究简化燃烧系统的分析提供了一种新的思路.
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| 关 键 词： | 计算奇异摄动 预混燃烧 准稳态假设 |
| 收稿时间： | 2008-06-16 |
| 修稿时间： | 2008-09-23 |
Application of CSP to the Reduction of a Complex Combustion Reaction System |
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| WANG Bin-Bin,JIANG Yong,QIU Rong.Application of CSP to the Reduction of a Complex Combustion Reaction System[J].Acta Physico-Chimica Sinica,2008,24(12):2221-2228. |
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| Authors: | WANG Bin-Bin JIANG Yong QIU Rong |
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| Affiliation: | State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, P. R. China |
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| Abstract: | A numerical study based on computational singular perturbation (CSP) in a methane/air premixed combustion system was undertaken. This method splits reaction spaces to eliminate stiffness, identifies quasi-steady-state (QSS) species by analyzing CSP pointer locally and integrally as well as simplifying algebraic relations and differential equations by using two CSP indexes. Finally, a 15-step globally reduced mechanism was constructed based on CSP analyses in a premixed methane/air combustion system. The 15-step reduced mechanism was tested and verified using Sandia’s PREMIX. Advantages of the CSP method are discussed. A new method for analyzing the reduced mechanismmay be used for more complex combustion systems. |
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| Keywords: | Computational singular perturbation Premixed combustion Quasi-steady-state assumption |
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