Improved Classification Criterion of Droplet Collision Outcomes for Internal Combustion Engine Spray

被引：0
|
作者：
Suo, Shaoyi [1 ]
Jia, Ming [1 ]
Liu, Hong [1 ]
Jiang, Linsong [2 ]
机构：
[1] School of Energy and Power Engineering, Dalian University of Technology, Dalian,116024, China
[2] Institute for Energy Research, Jiangsu University, Zhenjiang,212000, China
来源：
Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2022年 / 43卷 / 10期
关键词：
Combustion - Drops - Fuel cells - Internal combustion engines;
D O I：
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中图分类号：
学科分类号：
摘要：
The bounce/coalescence criterion of droplet collision is improved in this paper. From a theoretical perspective, the limitations of the stretching separation/reflexive separation criterion established by Ashgriz and Poo are analyzed, and then the overlapping region classification criterion of stretching separation/reflexive separation proposed by Munnannur and Reitz is modified. Combined with the previously improved stretching separation/coalescence criterion and the reflexive separation/coalescence criterion established by Gotaas et al, a set of relatively complete criteria for droplet collision outcome, which are suitable for the internal combustion engine spray, considering the ambient gas phase characteristics and the physical properties of fuel droplets, are finally established. Based on the experiments of droplet collision and the spray impingement, the improved criteria are verified. © 2022, Science Press. All right reserved.
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页码：2831 / 2839
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