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首页> 外文期刊>中国化学工程学报（英文版） >基于二阶矩封闭湍流模型的非预混湍流火焰的数值模拟
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基于二阶矩封闭湍流模型的非预混湍流火焰的数值模拟

机译：基于二阶矩封闭湍流模型的非预混湍流火焰的数值模拟

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机译：Turbulent nonpremixed CH.J/H2 flame has been simulated using several typical differential second-moment turbulence closure (SMTC) models. To clarify the applicability of the various models, the LRR-IP model, JM model, SSG model as well as two modified LRR-IP models were tested. Some of above-mentioned SMTC models cannot provide the overall satisfactory predictions of this challenging case. It is confirmed again that the standard LRR-IP model considerably overpredict the centerline velocity decay rate, and therefore performs not well. Also it is interesting to observe that the JM model does not perform well in this challenging test case, although it has already been proved successful in other cases. The SSG model produces quite satisfactory prediction and performs equally well or better than the two modified LRR-IP models in the reacting case. It can be concluded that the modified LRR-IP models as well as the SSG model are superior to the other SMTC models in the turbulent nonpremixed CH4/H2 flame.

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