| 柴油机颗粒过滤器的优化 |
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| 引用本文： | 向立明,刘吉林.柴油机颗粒过滤器的优化[J].山东内燃机,2013(6):32-37. |
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| 作者姓名： | 向立明 刘吉林 |
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| 作者单位： | [1]湖北文理学院机械与汽车工程学院,襄阳441053 [2]北京航空航天大学交通科学与工程学院,北京100191 |
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| 基金项目： | 湖北省教育厅科学技术研究项目（B2013099）;湖北文理学院博士科研基金资助项目（20138007） |
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| 摘 要： | 通过软件仿真，分析了过滤器内部流场，得到了气相的速度、压力分布，颗粒相的速度、轨迹分布，并讨论了孔道内部颗粒物的沉积过程。结果证明，三角形孔道的滤芯比现行的正方形孔道滤芯具备更高的性能，并提出了一种优化扩张段外壳母线的方法，扩展了今后的研究思路。
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| 关 键 词： | 柴油机颗粒过滤器 压力损失 过滤效率 两相流动 |
Design and Optimization of Particulate Filter for Diesel Engine |
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| Affiliation: | XIANG Li - ming, LIU Ji - lin ( 1. School of Mechanical and Automotive Engineering, Hubei University of Arts and Science, Xiangyang 441053, China;2. School of Transportation Science and Engineering, Beihang University, Beijing 100191, China ) |
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| Abstract: | Using a software emulation, the paper describes the flow field inside the filter, gas phase velocity, pressure distribution, particulate speed and track distribution and the process of par- ticulate deposition inside the channel. The result shows that the filter with triangular channels is more efficient than that with a rectangle channel. In the end, a new method is proposed to optimize the generatrix of the expansion tube. |
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| Keywords: | Particulate Filter for Diesel Engine Pressure Loss Filtering Efficiency Two - phase Flow Model |
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