| 车用歧管式催化器内部流速及压力分析 |
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| 引用本文： | 丁柏群,李明扬. 车用歧管式催化器内部流速及压力分析[J]. 车用发动机, 2011, 0(3): 20-24 |
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| 作者姓名： | 丁柏群 李明扬 |
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| 作者单位： | 东北林业大学交通学院; |
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| 摘 要： | 通过数值模拟和试验验证,分析了歧管式催化器内部气流的速度场、压力场和气流分布状态,并与常规的底盘下催化器进行了比较.结果表明:随入口流量的增大,歧管式催化器内部气流流速增大、压力损失增大、径向分布均匀性降低;气流的径向分布不同于常规催化器集中于轴线的轴对称形式,而是在载体前端面呈比较分散的状态,其中管板复合型歧管式催化...
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| 关 键 词： | 歧管式催化器 数值模拟 流速 压力 均匀性 |
Internal Flow Velocity and Pressure Analysis of Vehicle Manifold Catalyst Converter |
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| DING Bai-qun,LI Ming-yang. Internal Flow Velocity and Pressure Analysis of Vehicle Manifold Catalyst Converter[J]. Vehicle Engine, 2011, 0(3): 20-24 |
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| Authors: | DING Bai-qun LI Ming-yang |
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| Affiliation: | DING Bai-qun,LI Ming-yang(Traffic School,Northeast Forestry University,Harbin 150040,China) |
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| Abstract: | Through the numerical simulation and experiment,the flow velocity field,pressure field and gas flow distribution in the manifold catalytic converter were analyzed and compared with those in the conventional catalyst converter under chassis.The results show that,with the increase of inlet flow,the flow velocity and pressure loss in the manifold catalyst converter increase and the uniformity of flow radial distribution decreases.Different from the axial symmetry distribution of conventional catalyst converter... |
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| Keywords: | manifold catalyst converter numerical simulation flow velocity pressure uniformity |
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