| 喷油嘴内部空穴流动模拟计算分析 |
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| 引用本文： | 郭立新,夏兴兰,韩颖,杨海涛.喷油嘴内部空穴流动模拟计算分析[J].现代车用动力,2011(4):29-35,49. |
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| 作者姓名： | 郭立新 夏兴兰 韩颖 杨海涛 |
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| 作者单位： | 1. 中国一汽无锡油泵油嘴研究所,江苏无锡,214063
2. 中日合资无锡泽根弹簧有限公司,江苏无锡,214072 |
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| 摘 要： | 利用多相流空穴模型对喷油嘴稳定喷射时喷孔内的空穴流动现象进行了三维数值模拟,分析了空穴在喷油嘴内的形成机理及其分布情况,,基于此模型进一步研究了喷油压力、背压及喷孔入口圆角半径与喷孔k系数对喷孔内部空穴分布的影响.通过模拟计算可知,喷射压力降低和背压增加、增大喷孔入口圆角半径及喷孔k系数后,喷孔内空穴将减小.
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| 关 键 词： | 喷油嘴 空穴流动 数值模拟 |
Numerical Simulation and Analysis on Cavitation Flow in a Nozzle |
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| GUO Li-xin,XIA Xing-lan,HAN Ying,YANG Hai-tao.Numerical Simulation and Analysis on Cavitation Flow in a Nozzle[J].Modern Vehicle Power,2011(4):29-35,49. |
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| Authors: | GUO Li-xin XIA Xing-lan HAN Ying YANG Hai-tao |
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| Affiliation: | GUO Li-xin1,XIA Xing-lan1,HAN Ying2,YANG Hai-tao1(1.FAW Wuxi Fuel Injection Equipment Research Institute,Wuxi 214063,China,2.Sino-Japan Joint Venture Wuxi Sawane Spring Co.,Ltd.,Wuxi 214072,China) |
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| Abstract: | In this paper,using multiphase cavitation flow model,3D numerical simulation was done to the fully developed cavitation flow in a nozzle at steady spray.The formation mechanism and distribution of cavitation inside the nozzle were analyzed using multiphase flow model coupled with cavitation model.Based on this model,the effects of injection pressure,back pressure,inlet round angle-radius ratio and k-factor of nozzle,on the distribution of the cavitation inside the nozzle are analyzed.Simulation results show... |
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| Keywords: | nozzle cavitation flow numerical simulation |
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