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甲醇发动机缸内燃烧过程的多维数值模拟

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针对甲醇作为发动机燃料的优缺点,通过CFD程序KIVE-3V对仿真甲醇发动机的缸内燃烧过程进行了多维数值模拟。通过模拟,得到了缸内压力、温度等大量实时数据信息,为甲醇发动机的研究提供依据。计算表明,甲醇发动机与汽油机相比,最高燃烧压力和压力升高率均有所提高,但升压分布均匀,整体处于汽油机水平,不会影响发动机正常运转;由于甲醇较快的燃烧速率,较短的燃烧期,致使最高燃烧温度低于汽油机,从而更有利于NO生成量的降低;同时CO的生成量也低于汽油机。
Multi-dimensional numerical simulation of the combustion process on methanol-fueled engine
The paper concludes the characters of methanol as a fuel in engines. Based on the kiva-3v program, it conducts the multi-dimensional numerical simulation of the operation process in cylinder of a methanol-fueled engine to obtain the detail information and performance graphic charts, as well as the real time data of pressure, temperature and so on. It is helpful for the research on methanol-fueled engines. The results indicate that the methanol is a green alternative fuel and the methanol-fueled engines have steady operations and lower emissions by comparing the numerical results with the data of gasoline engine.

methanolenginescombustion processnumerical simulation

张庆峰、何祖威、王迎

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重庆大学,动力工程学院,重庆,400030

甲醇 发动机 燃烧过程 数值模拟

CSTC2006AB4005

2009

重庆大学学报
重庆大学

重庆大学学报

CSTPCDCSCD北大核心EI
影响因子:0.601
ISSN:1000-582X
年,卷(期):2009.32(12)
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