| 湍流对缸内存在催化燃烧的HCCI发动机燃烧与排放特性的影响 |
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| 引用本文： | 曾文,艾延廷,徐葳,马洪安.湍流对缸内存在催化燃烧的HCCI发动机燃烧与排放特性的影响[J].小型内燃机与摩托车,2010,39(2). |
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| 作者姓名： | 曾文 艾延廷 徐葳 马洪安 |
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| 作者单位： | 1. 天津大学内燃机燃烧学国家重点实验室,天津,300072;沈阳航空工业学院动力与能源工程学院
2. 沈阳航空工业学院动力与能源工程学院 |
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| 基金项目： | 中国博士后科学基金，辽宁省教育厅资助项目 |
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| 摘 要： | 将发动机多维CFD程序KIVA-3V与化学动力学程序CHEMKIN Ⅲ及DETCHEM相耦合,模拟了湍流模型对缸内存在催化燃烧的HCCI发动机燃烧及排放特性的影响.发动机以甲烷为燃料,其表面和空间化学反应采用了详细的动力学机理.分析了两种湍流模型对缸内存在催化燃烧的HCCI发动机着火时刻、缸内温度场及HC、CO、NO浓度场的影响,结果表明当采用RNG k-ε模型时,与采用标准k-ε模型相比,HCCI发动机着火时刻会有所延迟,HC、CO排放有所升高,但Nox的排放将会有大幅降低.
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| 关 键 词： | 催化燃烧 均质压燃 化学动力学模型 数值模拟 湍流模型 |
Effects of Turbulent Flow on the Characteristics of Combustion and Emissions of In-Cylinder Catalytic HCCI Engine |
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| Zeng Wen,Ai Yanting,Xu Wei,Ma Hongan.Effects of Turbulent Flow on the Characteristics of Combustion and Emissions of In-Cylinder Catalytic HCCI Engine[J].Small Internal Combustion Engine and Motorcycle,2010,39(2). |
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| Authors: | Zeng Wen Ai Yanting Xu Wei Ma Hongan |
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| Affiliation: | Zeng Wen1,2,Ai Yanting2,Xu Wei2,Ma Hongan21-State Key Laboratory of Engines,Tianjin University(Tianjin,300072,China)2-School of Engine , Energy Engineering,Shenyang Institute of Aeronautical Engineering |
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| Abstract: | By coupling the KIVA-3V engine CFD package with the CHEMKIN III and DETCHEM chemical kinetics packages,the effects of turbulent flow models on the combustion process and emissions of in-cylinder catalytic homogeneous charge compression ignition (HCCI) engine were simulated.Methane was used as fuel and the detailed surface and gas reaction mechanisms were adopted.The effects of two turbulent flow models on the ignition timing,the temperature field and the concentration fields of HC,CO and NO of an in-cylinde... |
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| Keywords: | Catalytic combustion Homogeneous charge compression ignition (HCCI) Chemical reaction kinetics model Numerical simulation Turbulent flow model |
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