章炜;孙齐虎;左承基;郑发彬;
1:海军蚌埠士官学校机电系，2:合肥工业大学
摘要：利用KIVA-3V程序对液态DME发动机进行了数值仿真计算,通过改变二甲醚喷射量研究了不同负荷下发动机的缸内工作过程,得到了缸内流动、平均性能曲线、温度、压力场以及NO、CO排放情况等实时数据信息。经过可视化后处理程序对比分析表明:二甲醚发动机负荷越大,缸内压力和温度越高,NO和CO排放量也越大。
关键词： 负荷;;二甲醚发动机;;燃烧过程;;KIVA-3V;;数值仿真
Abstract: Based on KIVA-3V,the operation
process in cylinder of a DME engine is simulated,the detail information of the
flow field in cylinder, average performance graphic charts and emissions are
obtained.This paper also discusses the affection of combustion process on the
different loads.It can be concluded that the pressure,temperature and emissions
of DME engine increased with a higher load.
Keywords: Load;DME Engine;Combustion
Process;KIVA-3V;Numerical Simulation
参考文献：
[1]何学良,李蔬松.内燃机燃烧学[M].北京:机械工业出版社,1990.
[2]蒋德明,黄佐华.内燃机替代燃料燃烧学[M].西安:西安交通大学出版社,2007
[3]林灵,魏远文.柴油机燃用二甲醚的HCCI特性模拟分析[J].西华大学学报(自然科学版),2008,27(4):27~29.
[4]王贺武,周龙保,陈鸿雁,蒋德明.柴油机燃用二甲醚的燃烧特性[J].燃烧科学与技术,2000,6(3):200~204.
[5]Anthony A.Amsden,etal.KIVA-Ⅱ:A Computer Program forChemically
Reactive Flows with Sprays,LA-11560-MS,1989.
[6]Anthony A.Amsden.KIVA-3:A KIVA Program
with Bolck-Structured Mesh for Complex Geometries,LA-12503-MS,1993.
[7]Anthony A.Amsden.KIVA-3V:A
Block-Structured KIVAProgram for Engines with Vertical or Canted Valves,LA-13313-MS,1997.
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