推进技术 ›› 2014, Vol. 35 ›› Issue (8): 1086-1093.

• 燃烧 传热 传质 • 上一篇    下一篇

不同湍流预混燃烧模型在本生灯火焰中的比较

韩 超,张 培,叶桃红,陈义良   

  1. 中国科学技术大学 热科学与能源工程系,安徽 合肥 230027;中国科学技术大学 热科学与能源工程系,安徽 合肥 230027;中国科学技术大学 热科学与能源工程系,安徽 合肥 230027;中国科学技术大学 热科学与能源工程系,安徽 合肥 230027
  • 发布日期:2021-08-15
  • 作者简介:韩 超(1992—),男,硕士生,研究领域为湍流燃烧。E-mail:danielhc@mail.ustc.edu.cn 通讯作者:叶桃红(1966—),男,博士,副教授,研究领域为湍流燃烧。
  • 基金资助:
    国家自然科学基金(51176178);国家自然科学重点基金(50936005)。

A Comparison of Three Different Turbulent Premixed Combustion Models in Busen Flames

  1. Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,China;Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,China;Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,China;Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,China
  • Published:2021-08-15

摘要: 湍流预混燃烧的大涡模拟数值计算近来受到很大的关注,为了进一步发展湍流预混燃烧模型,利用正在发展的湍流预混燃烧模型等值面集合的G函数方法、层流预混火焰生成流型的化学热力学建表FGM方法、G函数/FGM耦合方法三种燃烧模型,对甲烷/空气湍流本生灯火焰进行了大涡模拟计算,并对上述燃烧模型进行了比较。大涡模拟结果表明,G函数方法能够较为准确捕捉火焰的传播特性,FGM方法能够捕捉到火焰和湍流的相互作用,但无法准确预测火焰的传播特性。而耦合的方法既可以捕捉火焰的传播特性,又能够捕捉到火焰和湍流的相互作用。

关键词: 湍流预混火焰;本生灯火焰;G函数;火焰面数据库

Abstract: Turbulent premixed combustion modeling in large eddy simulation(LES)has attracted a lot of attention. In order to develop turbulent combustion model,in this work,three combustion models including G-equation,flamelet generated manifolds(FGM)method and the coupled G-FGM method were applied to simulate the turbulent methane/air Busen flame using LES. The predictions of these models were compared in detail. The results indicate that G-equation method could capture the flame propagation precisely. FMG method takes the interaction of turbulence and flame into consideration but cannot predict the flame propagation exactly. The coupled levelset/FGM method could have both advantages so that it has potential applications.

Key words: Turbulent premixed flame;Busen flame;G function;Flamelet table