| 收缩管角度对车用催化转化器流动特性的影响 |
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| 引用本文： | 许建民,刘金武.收缩管角度对车用催化转化器流动特性的影响[J].武汉科技大学学报(自然科学版),2011,34(3). |
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| 作者姓名： | 许建民 刘金武 |
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| 作者单位： | 厦门理工学院机械工程系,福建,厦门,361024 |
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| 基金项目： | 厦门市科技计划指导性项目 |
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| 摘 要： | 采用CFD软件对3种出口收缩管角度不同的催化转化器的速度场、压力场进行三维稳态流动数值模拟.结果表明,出口收缩管角度对催化转化器的气流分布有很大影响,对于入口扩张管和载体相同的催化转化器,出口收缩管角度越大,其内部气流分布越不均匀,压力损失也越大.
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| 关 键 词： | CFD 催化转化器 收缩管角度 速度场 压力场 |
Influence of shrink tube angle on flow in the automotive catalyst converter |
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| Xu Jianmin,Liu Jinwu.Influence of shrink tube angle on flow in the automotive catalyst converter[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),2011,34(3). |
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| Authors: | Xu Jianmin Liu Jinwu |
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| Institution: | Xu Jianmin,Liu Jinwu(Department of Mechanical Engineering,Xiamen University of Technology,Xiamen 361024,China) |
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| Abstract: | Multi-dimensional numerical simulation of velocity field and pressure field of steady flows in the catalytic converters of three different shrink tube angles of export was performed by using computational fluid dynamic method(CFD).The results show that,the shrink tube angle of export has a great impact on the flow of catalytic converters.For the catalytic converters having the same import expansion tube and carrier,as the shrink tube angle of export increases,the air distribution of catalytic converters bec... |
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| Keywords: | CFD catalytic converters shrink tube angle velocity field pressure field |
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