A numerical study of the effects of pressure fluctuations inside injection nozzle on high-pressure and evaporating diesel spray characteristics

被引：12
|
作者：
Wang, Xiang [1 ,2 ]
Han, Zhiqiang [3 ,4 ]
Su, Wanhua [4 ]
机构：
[1] Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
[3] Xihua Univ, Sch Transportat & Automot Engn, Chengdu 610039, Peoples R China
[4] Tianjin Univ, State Key Lab Engines, Tianjin 300072, Peoples R China
来源：
APPLIED MATHEMATICAL MODELLING | 2016年 / 40卷 / 5-6期
基金：
中国国家自然科学基金;
关键词：
Diesel spray; Injection pressure fluctuation; Liquid phase penetration; Fuel/air mixing; CAVITATION; FLOW; ATOMIZATION; BREAKUP; MODEL;
D O I：
10.1016/j.apm.2015.11.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effects of injection pressure fluctuations on high-pressure and evaporating spray behaviour, especially under the representative modern diesel engine injection conditions, were carefully evaluated by using a well validated two-stage modelling approach. The numerical results indicate that as the injection pressure fluctuates more drastically both liquid and gas phase motions in the spray field will be more intensively disturbed. Furthermore, the injection pressure fluctuations have strong potential to enhance fuel/gas mixing processes inside high-pressure and evaporating diesel spray field. (C) 2015 Elsevier Inc. All rights reserved.
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页码：4032 / 4043
页数：12
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