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| 初始喷雾液柱的实验及数值模拟研究 | |
| 引用本文： | 曹晓辉,范秦寅,袁银南,服部广司,成宫喜久男. 初始喷雾液柱的实验及数值模拟研究[J]. 汽车工程, 2010, 32(1) |
| 作者姓名： | 曹晓辉 范秦寅 袁银南 服部广司 成宫喜久男 |
| 作者单位： | 1. 江苏大学汽车与交通工程学院,镇江,212013 2. 日本大阪产业大学工学部,日本,574-0013 |
| 摘 要： | 从应用平面激光散射技术获得的喷雾液柱清晰照片发现,在喷射初始阶段,当环境压力在某一范围(16～500kPa)时,液柱在分裂成雾状前,其顶端会出现奇特的蘑菇状喷雾.为了解释其形成机理,采用MARS法进行了喷雾液柱两相流数值模拟,得到的结果与实验吻合.进一步的分析表明,蘑菇状喷雾是由周围空气流和高速燃油流之间复杂的动量交换形成的. |
| 关 键 词： | 内燃机 喷雾液柱 数值模拟 MARS法 |
Experiment and Numerical Simulation of Initial Fuel Spray Column |
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| Cao Xiaohui,Fan Qinyin,Yuan Yinnan,Kikuo Narumiya,Hiroshi Hattori. Experiment and Numerical Simulation of Initial Fuel Spray Column[J]. Automotive Engineering, 2010, 32(1) | |
| Authors: | Cao Xiaohui Fan Qinyin Yuan Yinnan Kikuo Narumiya Hiroshi Hattori |
| Affiliation: | Cao Xiaohui1,Fan Qinyin1,Yuan Yinnan1,Kikuo Narumiya2 & Hiroshi Hattori2 1.School of Automobile , Traffic Engineering,Jiangsu University,Zhenjiang 212013,2.Osaka Sangyo University,Daito 574-0013,Japan |
| Abstract: | It is found from the clear pictures taken with planar laser scattering technique that at initial phase of injection,when surrounding pressure is in the range of 16～500kPa,a peculiar mushroom-shaped sprayappears in the tip of spray column before it atomized.For explaining its forming mechanism,a two-phase flow simulation on spray column is performed by using MARS technique,and the result well agrees with experiment one.Further analyses indicate that mushroom-shaped spray is formed by the momentum interchange between high-speed fuel flow and surrounding air flow. |
| Keywords: | internal combustion engine fuel spray column numerical simulation MARS technique |
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