某型柴油机EGR率优化仿真分析  

Simulation and optimization analysis on EGR Ratio of the diesel engine

作　　者：陈园明[1] 王宏大[1] 王次安[1] Chen Yuanming;Wang Hongda;Wang Cian(Power Research institute, Anhui Jianghuai Automobile Co., Ltd., Anhui Hefei 230)

机构地区：[1]安徽江淮汽车股份有限公司,安徽合肥230601

出　　处：《汽车实用技术》2016年第8期104-106,共3页Automobile Applied Technology

摘　　要：应用一维BOOST软件和三维Fire软件对某型柴油机进气歧管EGR率分布进行模拟分析。采用瞬态分析模式,对各个工况下EGR气体在进气歧管中的分布进行计算,结果表明:初始设计方案各缸EGR率偏差较大,不能满足评价标准;依据分析结果对EGR废气进口进行优化,最终优化后各缸EGR率偏差能够满足评价标准。The diesel engine intake manifold is calculated by 1D_BOOST and 3D_Fire simulation on EGR deviation. The transient mode was set,and EGR gas distribution in intake manifold was simulated at all the operation points. The result shows :the initial model can’t meet the standard, modify the design of the EGR inlet then the result can meet the standard.

关 键 词：进气歧管 EGR率偏差 CFD 

分 类 号：U461[机械工程—车辆工程]