| 柴油机喷射系统高压油路的流固耦合仿真 |
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| 引用本文： | 熊永华,杜发荣,高峰,辜忠涛.柴油机喷射系统高压油路的流固耦合仿真[J].农业机械学报,2006,37(12):36-40. |
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| 作者姓名： | 熊永华 杜发荣 高峰 辜忠涛 |
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| 作者单位： | 1. 北京航空航天大学汽车工程系 100083 北京市
2. 天津石油职业技术学院 301607 天津市 |
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| 摘 要： | 泵-管-嘴式喷油系统中喷油嘴与高压油管的结构参数决定燃油的喷雾质量,从而影响整个柴油机的燃烧状况。通过计算流体力学(CFD)理论,利用数值仿真方法建立了某385型高速直喷柴油机喷油系统的计算模型,对高压油管和喷油器油道的液力过程进行了流固耦合仿真,较为准确地模拟了燃油在油道内的流动过程,分析了油管长度对喷雾特性的影响,进而确定了合适的高压油管几何尺寸,为后期的柴油机燃油喷射系统的研究提供理论依据。
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| 关 键 词： | 柴油机 喷油器 喷雾 流固耦合 |
| 收稿时间： | 12 20 2005 12:00AM |
| 修稿时间： | 2005年12月20 |
Fluid-structure Coupled Simulation Research on High Pressure Fluid Flow of Fuel Injection System in Diesel Engine |
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| Xiong Yonghua,Du Farong,Gao Feng,Gu Zhongtao.Fluid-structure Coupled Simulation Research on High Pressure Fluid Flow of Fuel Injection System in Diesel Engine[J].Transactions of the Chinese Society of Agricultural Machinery,2006,37(12):36-40. |
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| Authors: | Xiong Yonghua Du Farong Gao Feng Gu Zhongtao |
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| Institution: | 1.Beihang University 2.Tianjin Petroleum Vocational and Technical College |
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| Abstract: | The quality of fuel spray is decided by the structure of nozzle and high-pressure fuel pipe in the pump-tube-nozzle fuel injection system, and it influences the whole diesel combustion. By using computational fluid dynamic (CFD) theoretical and numerical simulation method, the calculation model of a certain type 385 diesel engine was set up, and simulation analysis of fluid flow process in the fuel injector and high-pressure fuel pipe was performed with fluid structure interaction (FSI) technique. The influence of the length of high-pressure fuel pipe was analyzed by means of convenient and facile computational simulation method, and the geometry parameter was confirmed. The research provided theoretical evidence for the subsequent research of diesel fuel injection system. |
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| Keywords: | Diesel engine Injector Fuel spray Fluid structure interaction |
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