燃烧室几何形状对柴油机排放特性影响的数值分析  

Simulation and Analysis about Combustion Chamber Geometry Shape Influence on Diesel Emission

作　　者：杨帅[1,2] 楼宏伟[1,2] 周毅[1,2] 王磊[2] 万晓[1,2] 李秀元[3] 

机构地区：[1]同济大学汽车学院,上海201804 [2]同济大学新能源汽车工程中心,上海201804 [3]济宁职业技术学院,山东济宁272037

出　　处：《实验室研究与探索》2016年第5期32-34,96,共4页Research and Exploration In Laboratory

基　　金：中央高校基本科研业务费专项资金资助项目(9005);同济大学课程建设实验教改资助项目(4061);同济大学教学改革资助项目(4052);同济大学精品实验项目资助(4065);同济大学青年教师英才计划资助项目(T028)

摘　　要：针对两种不同几何形状燃烧室,对柴油机燃烧过程进行数值仿真计算,得到了不同几何形状燃烧室的污染物排放情况,用以研究燃烧室形状对排放特性的影响。得到了柴油机燃烧过程中排放生成物NOx、Soot、HC、CO随时间历程的生成规律和空间生成位置,数值仿真还包括了燃烧室温度场、压力场等瞬态结果,弥补了实验过程中无法提供三维可视场结果的缺陷。For two different geometry combustion chamber of diesel engine,the numerical simulation was carried out for the combustion process by CFD. The emissions of two different geometry combustion chamber were calculated in order to study the effects of combustion chamber geometry on the emission characteristics. The results of the diesel engine combustion process,NOx,Soot,HC,CO emission with the time course of generation rules and space generation position were described. Numerical simulation analysis also included the combustion chamber temperature field,pressure field and transient results. The research makes up the shortcoming that the experiment cannot provide three-dimensional visual field results of defects.

关 键 词：燃烧室 几何形状 排放 模拟计算 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]