某汽油机催化器系统的CFD分析  

CFD Analysis on Catalytic Converter System of Gasoline Engine

作　　者：王丹[1,2] 刘双喜[2] 牟江峰[2] 陈浩[2] 

机构地区：[1]天津大学内燃机燃烧学国家重点实验室 [2]中国汽车技术研究中心汽车工程研究院

出　　处：《小型内燃机与摩托车》2014年第4期40-43,共4页Small Internal Combustion Engine and Motorcycle

摘　　要：利用三维流体分析软件STAR-CCM＋对某汽油机催化器系统进行了模拟分析，运用多孔介质模型模拟催化器内部的流动，重点考察了该催化器系统的压力损失和气流分布均匀性，并对氧传感器的位置进行了评估。综合各项分析评价指标，提出优化建议，为排气系统的结构设计和性能改进提供理论依据。Numerical simulation of catalytic converter system for certain gasoline engine was conducted by CFD software of STAR-CCM＋. By using porous media modal to simulate the internal flow of the catalyst, the pressure drop and uniformity of the flow filed were discussed,and the positions of oxygen sensors were evaluated. Based on the calculated results,optimization recommendations were pointed out. The research will provide theoretical basis for structure design and performance improvement of exhaust system.

关 键 词：催化器系统 压力损失 均匀性 氧传感器 

分 类 号：TK421.8[动力工程及工程热物理—动力机械及工程]