3-D simulation of soot formation in a direct-injection diesel engine based on a comprehensive chemical mechanism and method of moments
文献类型：期刊论文
| 作者 | Zhong, Bei-Jing; Dang, Shuai; Song, Ya-Na; Gong, Jing-Song |
| 刊名 | COMBUSTION THEORY AND MODELLING
 |
| 出版日期 | 2012 |
| 卷号 | 16期号:1页码:143-171 |
| 关键词 | soot polycyclic aromatic hydrocarbons n-heptane oxidation DI-diesel engine turbulent diffusion flame |
| ISSN号 | 1364-7830 |
| 通讯作者 | Zhong, BJ (reprint author), Tsinghua Univ, Dept Engn Mech, Key Lab Thermal Sci & Power Engn, Minist Educ, Beijing 100084, Peoples R China. |
| 中文摘要 | Here, we propose both a comprehensive chemical mechanism and a reduced mechanism for a three-dimensional combustion simulation, describing the formation of polycyclic aromatic hydrocarbons (PAHs), in a direct-injection diesel engine. A soot model based on the reduced mechanism and a method of moments is also presented. The turbulent diffusion flame and PAH formation in the diesel engine were modelled using the reduced mechanism based on the detailed mechanism using a fixed wall temperature as a boundary condition. The spatial distribution of PAH concentrations and the characteristic parameters for soot formation in the engine cylinder were obtained by coupling a detailed chemical kinetic model with the three-dimensional computational fluid dynamic (CFD) model. Comparison of the simulated results with limited experimental data shows that the chemical mechanisms and soot model are realistic and correctly describe the basic physics of diesel combustion but require further development to improve their accuracy. |
| 英文摘要 | Here, we propose both a comprehensive chemical mechanism and a reduced mechanism for a three-dimensional combustion simulation, describing the formation of polycyclic aromatic hydrocarbons (PAHs), in a direct-injection diesel engine. A soot model based on the reduced mechanism and a method of moments is also presented. The turbulent diffusion flame and PAH formation in the diesel engine were modelled using the reduced mechanism based on the detailed mechanism using a fixed wall temperature as a boundary condition. The spatial distribution of PAH concentrations and the characteristic parameters for soot formation in the engine cylinder were obtained by coupling a detailed chemical kinetic model with the three-dimensional computational fluid dynamic (CFD) model. Comparison of the simulated results with limited experimental data shows that the chemical mechanisms and soot model are realistic and correctly describe the basic physics of diesel combustion but require further development to improve their accuracy. |
| 学科主题 | 空间技术 |
| 收录类别 | SCI |
| 资助信息 | China National Science Fund [51036004]; National High Technology Research and Development Program of China [2009AA05Z219] |
| 语种 | 英语 |
| 公开日期 | 2014-12-15 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/3329]  |
| 专题 | 国家空间科学中心_其他部室 |
| 推荐引用方式 GB/T 7714 | Zhong, Bei-Jing,Dang, Shuai,Song, Ya-Na,et al. 3-D simulation of soot formation in a direct-injection diesel engine based on a comprehensive chemical mechanism and method of moments[J]. COMBUSTION THEORY AND MODELLING,2012,16(1):143-171. |
| APA | Zhong, Bei-Jing,Dang, Shuai,Song, Ya-Na,&Gong, Jing-Song.(2012).3-D simulation of soot formation in a direct-injection diesel engine based on a comprehensive chemical mechanism and method of moments.COMBUSTION THEORY AND MODELLING,16(1),143-171. |
| MLA | Zhong, Bei-Jing,et al."3-D simulation of soot formation in a direct-injection diesel engine based on a comprehensive chemical mechanism and method of moments".COMBUSTION THEORY AND MODELLING 16.1(2012):143-171. |
入库方式： OAI收割
来源：国家空间科学中心
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