| 涡流室式柴油机燃油雾化过程的三维数值模拟 |
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| 引用本文： | 夏兴兰,房进.涡流室式柴油机燃油雾化过程的三维数值模拟[J].南昌大学学报(工科版),1999,21(2):71-77. |
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| 作者姓名： | 夏兴兰 房进 |
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| 作者单位： | 南昌大学机电工程学院，江苏理工大学 |
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| 摘 要： | 将喷射燃油分为液核区和气液混合区，用Ｋ－Ｈ不稳定性理论和Ｒ－Ｔ不稳定性理论来分别描述其油滴破碎过程，并考虑油滴间的碰撞与聚合，建立了燃油雾化模型将此模型应用到涡流室式柴油机中，进行三维数值模拟计算，得到了涡流室式柴油机油滴雾化过程的一些规律，取得了与高速摄影照片相一致的结果
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| 关 键 词： | 柴油机，涡流室，雾化，模拟 |
The Three-Dimensional Numerical Simulation of Fuel Atomization in a Swirl Chamber Diesel Engine |
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| Xia Xinglan.The Three-Dimensional Numerical Simulation of Fuel Atomization in a Swirl Chamber Diesel Engine[J].Journal of Nanchang University(Engineering & Technology Edition),1999,21(2):71-77. |
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| Authors: | Xia Xinglan |
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| Abstract: | The injected fuel is divided into two regions:a core region and a mixing region. The process of oil droplet breakup in the core region and the mixing region is described by K-H instability and R-T instability respectively.In addition to droplet breakup,the process of collision and coalescence is considered.Based on the analysis,the fuel atomization model is proposed. The model is used in a swirl chamber diesel engine,and three-dimensional numerical simulation is carried out in it.Some conclusions about the process of fuel atomization are obtained.The simulated results are in good agreement with those of high speed photograph. |
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| Keywords: | diesel engine swirl chamber atomization simulation |
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