| 基于FLUENT的柴油机喷油嘴结构改进与数值分析 |
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| 引用本文： | 张玉光,刘彪,李明海.基于FLUENT的柴油机喷油嘴结构改进与数值分析[J].内燃机,2011(5):9-11,32. |
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| 作者姓名： | 张玉光 刘彪 李明海 |
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| 作者单位： | 1. 沈阳铁路局,辽宁沈阳,110001
2. 大连交通大学,辽宁大连,116028 |
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| 摘 要： | 由于喷油嘴内的流动状态以及燃油喷射情况在很大程度上影响柴油机的排放和经济性能，对喷油嘴进行流场分析就显得越来越重要了。通过Fluent软件利用可压缩流体的三维湍流模型，对改进前后喷油嘴内的流体进行仿真计算，在保证喷油器喷孔出口处的压力一致的情况下，将单锥面针阀改为双锥面针阀，以此来降低针阀的升程和减小压力室的容积，目的是保证喷油器工作的可靠性和降低柴油机的碳烟排放。
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| 关 键 词： | 柴油机 针阀 三维流体计算 改进设计 |
Numerical Analysis and Structure Improvement of Diesel Engine Nozzle Based on FLUENT |
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| ZHANG Yu-guang,LIU Biao,LI Ming-hai.Numerical Analysis and Structure Improvement of Diesel Engine Nozzle Based on FLUENT[J].Internal Combustion Engines,2011(5):9-11,32. |
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| Authors: | ZHANG Yu-guang LIU Biao LI Ming-hai |
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| Affiliation: | ZHANG Yu-guang1,LIU Biao2,LI Ming-hai2(1.Shenyang Railway Bureau,Shenyang 110001,China,2.Dalian Jiaotong University,Dalian 116028,China) |
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| Abstract: | The investigation of the flow characteristics in the nozzle becomes more and more important because the flow status inside the nozzle and fuel injection significantly influence the emission and economy of diesel engines.The three-dimensional numerical simulation for the improvement of the compressible fluid within the nozzle was conducted by using FLUENT software.Based on the same circumstances of the fuel injector nozzle exit pressure,Single cone needle was improved to Biconical surface needle,in order to ... |
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| Keywords: | diesel engine needlea three-dimensional fluid calculation improved design |
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