| 喷油器内部瞬态流动三维数值模拟研究 |
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| 引用本文： | 李霞明,周华,刘庆,罗新浩,何志霞,王谦.喷油器内部瞬态流动三维数值模拟研究[J].拖拉机与农用运输车,2007,34(5):19-21,24. |
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| 作者姓名： | 李霞明 周华 刘庆 罗新浩 何志霞 王谦 |
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| 作者单位： | 江苏大学,能源与动力工程学院,江苏,镇江,212013 |
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| 摘 要： | 喷油器的内部流动以及后续的喷雾特性直接影响了柴油机的排放和经济性能,对喷油嘴的内部流动进行三维瞬态数值模拟分析就显得更为重要。利用计算流体力学软件STAR-CD建立三维动态计算网格并进行模拟分析,得到了喷嘴内部的压力分布和喷孔出口的瞬时速度变化等规律。计算结果可为缸内喷雾研究提供更真实的边界条件,以及对喷嘴结构参数的优化设计具有指导意义。
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| 关 键 词： | 柴油机 数值模拟 喷嘴 CFD |
| 文章编号： | 1006-0006（2007）05-0019-03 |
| 修稿时间： | 2006-12-08 |
Numerical Simulation of Flows in Engine Injection System |
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| LI Xia-ming,ZHOU Hua,LIU Qing,LUO Xin-hao,HE Zhi-xia,WANG Qian.Numerical Simulation of Flows in Engine Injection System[J].Tractor & Farm Transporter,2007,34(5):19-21,24. |
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| Authors: | LI Xia-ming ZHOU Hua LIU Qing LUO Xin-hao HE Zhi-xia WANG Qian |
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| Institution: | School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China |
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| Abstract: | The investigation of the three-dimension transient flow characteristics inside the nozzle becomes more and more important,because the flow status in the nozzle and fuel injection immediately influence the emission and economy performance of diesel engines.The three dimension dynamic model was performed by computational fluid dynamics software package STAR-CD.The results including pressure distributing and average velocity in the nozzle can provide more realistic boundary conditions for the spray model,which are very useful for the optimum design of the nozzle structure parameters. |
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| Keywords: | CFD |
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