| 不同载体端面造型的催化转换器数值模拟 |
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| 引用本文： | 许建民,袁志群,戴腾清.不同载体端面造型的催化转换器数值模拟[J].西北轻工业学院学报,2009,27(6):87-90,104. |
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| 作者姓名： | 许建民 袁志群 戴腾清 |
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| 作者单位： | 许建民,袁志群(厦门理工学院机械工程系,福建,厦门,361024);戴腾清(广州风神汽车有限公司设备动力科,广东,广州,510800) |
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| 摘 要： | 用CFD软件FLUENT对3种不同载体端面造型的催化转换器的速度场、压力场进行了三维稳态流动数值模拟,模拟结果显示：载体端面造型对催化转换器的气流分布有很大影响,采用球形端面载体和锥形端面载体不仅可减少入口扩张管的气流分离,而且可以使其内部速度分布更均匀.
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| 关 键 词： | CFD 催化转换器 载体端面造型 速度场 压力场 |
NUMERICAL SIMULATION OF AUTOMOTIVE CATALYTIC CONVERTERS BASED DIFFERENT SHAPES OF THE MONOLITH |
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| Affiliation: | XU Jian-min,YUAN Zhi-qun,DAI Teng-qing(1.Department of Mechanical Engineering,Xiamen University of Technology,Xiamen 361024,China;2.Power Equipment Branch,Guangzhou Fengshen Motor Co.Ltd.,Guangzhou 510800,China) |
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| Abstract: | In this article,multi-dimensional numerical simulation about velocity field and pressure field of steady flows in the catalytic converters for three different shapes of the monolith ends was performed by using computational fluid dynamic method（CFD）.Simulation results show that：the shapes of the monolith ends have a great impact on the flow of catalytic converters.Using the sphere-shaped monolith and cone-shaped monolith,not only reduce flow separation of entrance expansion tube,but also make more uniform velocity. |
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| Keywords: | CFD |
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