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兵工学报 ›› 2012, Vol. 33 ›› Issue (12): 1436-1441.doi: 10.3969/j.issn.1000-1093.2012.12.005

• 论文 • 上一篇    下一篇

柴油机高密度-快速燃烧过程数值模拟

尤国栋1 , 苏铁熊1 , 孙利魏1,2 , 许俊峰1 , 徐春龙2 , 王增全2   

  1. (1.中北大学 机电工程学院, 山西 太原 030051; 2.中国北方发动机研究所, 山西 大同 037036)
  • 收稿日期:2011-03-07 修回日期:2011-03-07 上线日期:2014-01-09
  • 作者简介:尤国栋(1979—),男,博士研究生

Numerical Simulation of High Density-High Speed Combustion Process in Diesel Engine

YOU Guo-dong1, SU Tie-xiong1, SUN Li-wei1,2, XU Jun-feng1, XU Chun-long2, WANG Zeng-quan2   

  1. (1. School of Mechatronics Engineering, North University of China, Taiyuan 030051, Shanxi, China;2. China North Engine Research Institute, Datong 037036, Shanxi, China)
  • Received:2011-03-07 Revised:2011-03-07 Online:2014-01-09

摘要: 针对柴油机升功率提高后燃烧过程的变化,应用CFD软件Fire研究燃烧子模型在柴油机高密度-快速燃烧过程模拟中的应用,利用某高升功率单缸柴油机的试验结果对WAVE喷雾破碎模型和涡团破碎(EBU)湍流控制燃烧模型的关键参数进行标定。对柴油机3 600 r/min时全负荷条件下燃烧过程进行数值模拟,仿真结果表明,缸内平均压力、指示功率和放热率与试验结果吻合良好,缸内燃油蒸发充分、温度分布均匀

关键词: 动力机械工程, 柴油机, 高密度-快速燃烧, CFD模型, 试验验证

Abstract: For the combustion progress changes of diesel engine with high specific power,study of submodels for combustion analysis of the high densityhigh speed combustion was carried out by a CFD code Fire. The key parameters of spray breakup model WAVE model and turbulence controlled combustion model eddy breakup (EBU) model were calibrated with experimental results of a single cylinder diesel. The combustion was numerated,with full load condition at constant speed of 3 600 r/min. The simulated result shows that the combustion parameters such as cylinder average pressure,indicated power and heat release rate are in well coincident with the experiment results. The fuel distribution in cylinder is a good condition,the temperature distribution is uniform. The method of CFD modeling is valid to simulate the high densityhigh speed diesel combustion.

Key words: power machinery and engineering, diesel engine, high density-high speed combustion, CFD
model,
experimental verification

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