| 基于精细碳黑模型的柴油机燃烧模拟 | |
| 宋雅娜 ; 钟北京 ; SONG Yana ; ZHONG Beijing | |
| 2010-06-07 ; 2010-06-07 | |
| 关键词 | 柴油机 碳黑 多环芳烃 矩方法 diesel soot polycyclic aromatic hydrocarbon method of moments TK421 |
| 其他题名 | Numerical simulation of diesel combustion based on the soot detailed kinetic model |
| 中文摘要 | 为更好地预测及分析柴油机污染物碳黑的产生特性,需要开发具有广泛应用价值的碳黑模型。该文以正庚烷作为燃料模拟物质,基于正庚烷氧化的气相反应机理,及描述固相碳黑颗粒形成物理、化学过程的详细动力学模型,对直喷式内燃机工作过程中的化学反应流进行了数值模拟计算。计算得到了柴油机燃烧室内多环芳烃质量、碳黑质量、体积分数随转角的变化曲线。在一定燃烧室壁面温度条件下,得到典型的多环芳烃质量、碳黑质量、碳黑体积分数均与测试水平相符,碳黑质量随转角变化曲线也与测试结果吻合较好。; To well predict and reduce diesel soot emission,soot model with universal application should be developed.Taking n-heptane as the fuel surrogate,based on n-heptane oxidation mechanism and soot particles kinetic mechanism founded on physical and chemical description,numerical simulation on the reactive flow during direct injection diesel engine operation process has been implemented.Curves of polycyclic aromatic hydrocarbon mass,soot mass and volume fraction have been obtained.Under certain cylinder wall thermal condition,magnitudes of simulated typical polycyclic aromatic hydrocarbon mass,soot emission index and volume fraction are all consistent with tested results.The simulated soot mass evolution curve also agrees well with that of the tests.; 国家重点基础研究发展计划(2002CB211602) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/37679]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 宋雅娜,钟北京,SONG Yana,等. 基于精细碳黑模型的柴油机燃烧模拟[J],2010, 2010. |
| APA | 宋雅娜,钟北京,SONG Yana,&ZHONG Beijing.(2010).基于精细碳黑模型的柴油机燃烧模拟.. |
| MLA | 宋雅娜,et al."基于精细碳黑模型的柴油机燃烧模拟".(2010). |
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