杨绪元;左承基;
1:合肥工业大学机械与汽车工程学院
摘要：燃烧过程对发动机的整机性能有着重要的影响,运用多维数值模拟可以很好地模拟内燃机的燃烧过程,优化燃烧系统,提高发动机的性能。本文运用KIVA-3V对直喷化改装后的1105柴油机进行了模拟仿真,得到了大量的缸内燃烧信息,研究了燃烧室偏心对柴油机燃烧过程的影响。绘制了偏移量为0、-8.54mm、和-10mm时的缸内温度场和压力场图,通过详细的分析和比较,得到了一些有用的结论,为下一步燃烧室的优化提供了有价值的基础数据。
关键词： 内燃机;;燃烧过程;;数值模拟;;KIVA-3V
Abstract: Combustion processes have an
important influence for engine performance.By use of 3D digital simulation
method,combustion processes of engines can be simulated to optimize combustion
system and improve performance of engines.This paper studies influence of
offset of combustion chamber on combustion processes of engines and gains a
great of combustion information in cylinder by use of simulation for a revised
1105 diesel engine.The temperature and pressure fields under the offsets of 0、-8.54 mm and-10 mmare drawn and useful conclusions can
be got through analysis and comparison for the further researches on combustion
chamber optimizing.
Keywords: Internal Combustion
Engine;Combustion Process;Digital Simulation;KIVA-3V
参考文献：
[1]何学良,李疏松.内燃机燃烧学[M].北京:机械工业出版社,1990:140-185.
[2]周龙保.内燃机学[M].北京:机械工业出版社,2005:82-122
[3]解茂昭.内燃机计算燃烧学[M]大连:大连理工大学出版社,2005:136-200.
[4]江从发,黄荣华,毛新勇.对KIVA程序中网格生成方法的改进研究[J].华中理工大学学报,2000,28(2):98-101.
[5]蒋勇,邓志华,徐琼,廖光煊,范维澄.KIVA:一种计算带有化学反应流和喷雾的多维流动模拟程序(I)[J].火灾科学,2000,9(1):63-67.
[6]蒋德明.内燃机燃烧与排放学[M].西安:西安交通大学出版社,2001:484-509.
[7]Anthony A.Amsden.KIVA-3V:A
Block-Structured KIVAProgram for Engines with Vertical or Canted
Valves.LA-13313-MS,1997.
[8]Micklow,G.J.and Gong,W.Combustion
modeling for directinjection diesel engines[J].Automotive
Engineering,2001,215(D5),651-663.
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