Knowledge management system National Space Science Center,CAS
| 3-D simulation of soot formation in a direct-injection diesel engine based on a comprehensive chemical mechanism and method of moments | |
| Zhong, Bei-Jing; Dang, Shuai; Song, Ya-Na; Gong, Jing-Song; Zhong, BJ (reprint author), Tsinghua Univ, Dept Engn Mech, Key Lab Thermal Sci & Power Engn, Minist Educ, Beijing 100084, Peoples R China. | |
| Department | 空间技术部 |
| Source Publication | COMBUSTION THEORY AND MODELLING
 |
| 2012 | |
| Volume | 16Issue:1Pages:143-171 |
| ISSN | 1364-7830 |
| Language | 英语 |
| Keyword | Soot Polycyclic Aromatic Hydrocarbons N-heptane Oxidation Di-diesel Engine Turbulent Diffusion Flame |
| Abstract | 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.; 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. |
| Indexed By | SCI |
| Funding Project | 中国科学院空间科学与应用研究中心 |
| Document Type | 期刊论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/3329 |
| Collection | 其他部室 |
| Corresponding Author | Zhong, BJ (reprint author), Tsinghua Univ, Dept Engn Mech, Key Lab Thermal Sci & Power Engn, Minist Educ, Beijing 100084, Peoples R China. |
| Recommended Citation 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,&Zhong, BJ .(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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| 2012161143.pdf（1467KB） | 开放获取 | CC BY-NC-SA | View Download | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment