汽油机双焰区准维燃烧分析模型

A Quasi-Dimensional Combustion Diagnostic Model for Gasoline Engine with Two Flame Zones

本文针对具有双火焰区燃烧方式的汽油机射流燃烧过程提出了准维分析模型.本模型不仅可以计算出燃烧放热率,燃气平均温度,NO生成规律,还可提供各火焰区的紊流燃烧速度、紊流传播速度和火焰速比等重要参数.计算结果表明,运用本模型可成功地对双焰区汽油机射流燃烧过程进行多方面的综合研究.

A quasi-dimensional diagnostic model for TJ-Jet combustion process in gasoline engine with two flame zones was proposed. Heat release rate, average burned gas temperature and NO formation as well as turbulent burning rate, turbulent flame propagating speel and flame speed ratio in different flame zones were computed as model output. The calculated results show that this model can be used to investigate the TJ-Jet combustion process in gasoline engine in many ways.