| 针阀结构对喷油嘴内燃油流动影响的数值分析 |
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| 引用本文： | 唐金平,杜慧勇,刘建新,宗永平.针阀结构对喷油嘴内燃油流动影响的数值分析[J].拖拉机与农用运输车,2007,34(4):73-74,81. |
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| 作者姓名： | 唐金平 杜慧勇 刘建新 宗永平 |
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| 作者单位： | 河南科技大学,车辆与动力工程学院,河南,洛阳,471003 |
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| 基金项目： | 河南省教育厅自然科学基金;河南科技大学校科研和教改项目;河南省科技厅科技攻关项目 |
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| 摘 要： | 采用CFD动态计算并结合欧拉两相流算法分析针阀结构的不同对燃油在喷油嘴内流动的影响。通过对单锥面针阀和双锥面针阀的喷油嘴进行对比分析,得出一次喷油全过程中单锥面针阀的出口质量流量要比双锥面针阀的少,相应的平均流速也低。由于喷嘴出口流动情况的不同造成了喷雾的形态差异。
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| 关 键 词： | 喷嘴 气穴 两相流 |
| 文章编号： | 1006-0006（2007）04-0073-02 |
| 修稿时间： | 2006-10-16 |
Numerical Analysis on Fuel Flowing in Diesel Injector Effected by Needle Structure |
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| TANG Jin-ping,DU Hui-yong,LIU Jian-xin,Zong Yong-ping.Numerical Analysis on Fuel Flowing in Diesel Injector Effected by Needle Structure[J].Tractor & Farm Transporter,2007,34(4):73-74,81. |
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| Authors: | TANG Jin-ping DU Hui-yong LIU Jian-xin Zong Yong-ping |
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| Institution: | Henan University of Science and Technology, Luoyang 471003, China |
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| Abstract: | The condition of fuel flowing in diesel injector with difference needle were studied by dynamic calculation and with the Euler approach in this paper.The result shows that the mass flow rate and the average velocity were litter in diesel injector with needle of single taper than of double taper.Finally the shape of spay was difference because of the flow conditions at the nozzle exit is not same. |
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| Keywords: | Nozzle Cavitation Two-phase flow |
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