预混湍流燃烧的level-set小火焰库方法研究
Level-Set Flamelet Modeling for Premixed Turbulent Combustion
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摘要: 针对燃气涡轮发动机中贫燃预混预蒸发燃烧室,考虑详细化学反应机理,结合Level-set方法与小火焰模型模拟预混火焰,计算了甲烷/空气贫燃预混燃烧的火焰面的位置,并比较了在贫燃条件下各当量比的NO排放值,计算与实验结果吻合较好。Abstract: Modeling for a lean premixed pre-evaporating combustor is presented. A detailed chemical reaction is considered. Mean location of lean premixed methane/air turbulent flame is modeled by Level-set approach and flamelet model. Comparison of calculations with experimental data indicates that the level-set flamelet approach is able to predict the major properties of the mean turbulent flame.
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