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

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