|
|||||
|
|
| 碳烟氧化模型的研究及在车用柴油机中的计算应用 | |
| 引用本文： | 石秀勇,李国祥,周雷,郑媛媛.碳烟氧化模型的研究及在车用柴油机中的计算应用[J].汽车工程,2007,29(8):649-653. |
| 作者姓名： | 石秀勇 李国祥 周雷 郑媛媛 |
| 作者单位： | 1. 山东大学能源与动力工程学院,济南,250061 2. 山东大学能源与动力工程学院,济南,250061;潍柴动力股份有限公司,潍坊,261062 3. 山东交通学院,济南250023 |
| 摘 要： | 提出了一个基于平均反应率的碳烟氧化模型,将其应用于柴油机数值模拟中,并结合试验方法研究了后喷射对碳烟排放的影响。将Hiroyasu碳烟生成模型和文中提出的碳烟氧化模型耦合在CFD源程序中构建多维模型,利用数值解析的手段,根据不同的后喷射方案计算柴油机碳烟的生成和氧化历程,并结合试验数据分析后喷射影响碳烟氧化的各种因素。研究结果表明,采用碳烟氧化模型和试验方法能真实反映柴油机碳烟的生成和氧化历程以及后喷射对碳烟排放的影响规律。 |
| 关 键 词： | 柴油机 碳烟氧化模型 平均反应率 数值模拟 |
A Study on Soot Oxidation Model and Its Application to the Numerical Simulation of Vehicle Diesel Engine |
|
| Shi Xiuyong,Li Guoxiang,Zhou Lei,Zheng Yuanyuan.A Study on Soot Oxidation Model and Its Application to the Numerical Simulation of Vehicle Diesel Engine[J].Automotive Engineering,2007,29(8):649-653. | |
| Authors: | Shi Xiuyong Li Guoxiang Zhou Lei Zheng Yuanyuan |
| Institution: | 1. School of Energy and Power Engineering, Shandong University, Jinan 250061 ; 2, WeiChai Power Co. Ltd. , Weifang 261062; 3. Shangdong Jiaotong University, Jinan 250023 |
| Abstract: | A mathematical model for soot oxidation based on average reaction rate is presented and applied to the numerical simulation of diesel engine.Firstly,the Hiroyasu model for soot formation and the model for soot oxidation are incorporated into the CFD code to construct a multidimensional model.Then,a numerical simulation on the process of soot formation and oxidation is performed according to different post-injection schemes.Finally the effects of post-injection parameters on soot oxidation are analyzed by tests.The results show that using soot oxidation model combined with tests can truly reveal the process of soot formation and oxidation as well as the influence rule of post-injection on soot emissions. |
| Keywords: | Diesel engine Soot oxidation model Average reaction rate Numerical simulation |
| 本文献已被 维普 万方数据 等数据库收录！ | |