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条件矩封闭模型应用于非预混湍流反应流动

刘涛 刘刚 方韧 许康烈

刘涛, 刘刚, 方韧, 等 . 条件矩封闭模型应用于非预混湍流反应流动[J]. 北京航空航天大学学报, 1999, 25(4): 442-446.
引用本文: 刘涛, 刘刚, 方韧, 等 . 条件矩封闭模型应用于非预混湍流反应流动[J]. 北京航空航天大学学报, 1999, 25(4): 442-446.
Liu Tao, Liu Gang, Fang Ren, et al. Implementation of Elliptic-type Conditional Moment Closure Model to Nonpremixed Turbulent Reacting Flows[J]. Journal of Beijing University of Aeronautics and Astronautics, 1999, 25(4): 442-446. (in Chinese)
Citation: Liu Tao, Liu Gang, Fang Ren, et al. Implementation of Elliptic-type Conditional Moment Closure Model to Nonpremixed Turbulent Reacting Flows[J]. Journal of Beijing University of Aeronautics and Astronautics, 1999, 25(4): 442-446. (in Chinese)

条件矩封闭模型应用于非预混湍流反应流动

基金项目: 国家自然科学基金(59876002)资助项目
详细信息
  • 中图分类号: V 2312; O 3575

Implementation of Elliptic-type Conditional Moment Closure Model to Nonpremixed Turbulent Reacting Flows

  • 摘要: 推导了考虑分子和湍流扩散的条件矩封闭方程,并利用其模拟了二维非预混湍流反应流,计算结果与实验结果符合良好.结果表明,有限值的Damkohler数使条件平均变量偏离其平衡状态,且在混合分数η位于化学恰当比下的混合分数附近时偏离最大.Damkohler数的升高还使得条件和无条件平均的反应速率升高,并使条件平均变量向其平衡状态值趋近.本文还观察到以往的简化维数处理会引起一定的偏差.因此,对于一般的椭圆型反应流动,建议采用考虑扩散效应的CMC控制方程.

     

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  • 被引次数: 0
出版历程
  • 收稿日期:  1998-03-20
  • 网络出版日期:  1999-04-30

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