| EQD180N-20型发动机进气不均匀性分析 |
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| 引用本文： | 江国华,温苗苗. EQD180N-20型发动机进气不均匀性分析[J]. 武汉理工大学学报(交通科学与工程版), 2006, 30(6): 1008-1010,1014 |
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| 作者姓名： | 江国华 温苗苗 |
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| 作者单位： | 武汉理工大学能源与动力工程学院,武汉,430063 |
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| 摘 要： | 进气管作为进气系统中的一部分，对多缸发动机的进气不均匀性有重要的影响．进气管内的流动损失和压力波动是影响各缸进气不均匀的主要原因．文中采用AVLFIRE软件建立EQD180N-20型发动机进气管的三维仿真模型，并进行了稳态和瞬态流动模拟计算．根据计算得到的流场，对引起进气不均匀性的原因进行了分析，计算了进气不均匀度，对进气不均匀性进行了评价．
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| 关 键 词： | 发动机 进气管 三维流动 数值模拟 进气不均匀性 |
| 收稿时间： | 2006-07-21 |
| 修稿时间： | 2006-07-21 |
Analysis of Induction Distribution Non-Evenness of EQD180N-20 Engine |
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| Jiang Guohua,Wen Miaomiao. Analysis of Induction Distribution Non-Evenness of EQD180N-20 Engine[J]. journal of wuhan university of technology(transportation science&engineering), 2006, 30(6): 1008-1010,1014 |
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| Authors: | Jiang Guohua Wen Miaomiao |
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| Affiliation: | School of Energy and Power Engineering,Wuhan University of Technology,Wuhan 430063 |
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| Abstract: | As a part of air intake system, intake manifolds have great effects on the distribution non-evenness of multi-cylinder engines. The flow resistance and kinetic effect in intake manifolds are two main factors of distribution non-evenness. In this paper, the three-dimensional numerical model of the intake manifold of EQ D180N-20 engine is built with AVL FIRE, and steady simulation and transient simulation are performed. According to the calculated flow characteristics, the cause of the induction distribution non-evenness is analyzed. The distribution non-evenness of the intake manifolds is appraised by calculating. |
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| Keywords: | engine intake manifold three-dimensional flow numerical simulation distribution nonevenness |
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