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旋流预混燃烧室流动混合的大涡模拟

郑韫哲 朱民 姜羲

郑韫哲, 朱民, 姜羲. 旋流预混燃烧室流动混合的大涡模拟[J]. 航空动力学报, 2012, 27(1): 33-40.
引用本文: 郑韫哲, 朱民, 姜羲. 旋流预混燃烧室流动混合的大涡模拟[J]. 航空动力学报, 2012, 27(1): 33-40.
ZHENG Yun-zhe, ZHU Min, JIANG Xi. Flow and air-fuel mixing processes in a premixed swirl combustor with LES[J]. Journal of Aerospace Power, 2012, 27(1): 33-40.
Citation: ZHENG Yun-zhe, ZHU Min, JIANG Xi. Flow and air-fuel mixing processes in a premixed swirl combustor with LES[J]. Journal of Aerospace Power, 2012, 27(1): 33-40.

旋流预混燃烧室流动混合的大涡模拟

基金项目: 国家重点基础研究发展计划项目(2007CB210106)

Flow and air-fuel mixing processes in a premixed swirl combustor with LES

  • 摘要: 采用大涡模拟的方法研究旋流预混燃烧室中的流动及燃料空气混合过程,选取亚格子湍动能模式为基准的涡黏模型,通过模拟涡核的运动过程定性的表征了拟序结构的发展;引入混合不均匀度的概率密度函数,研究入口边界条件尤其是入口速度对于涡团破碎及混合程度的影响规律;通过研究速度分量与燃料质量分数脉动的相关性,分析了不同方向的速度脉动对于混合过程的影响因子.这些均为进一步研究旋流预混燃烧室的燃烧不稳定性及污染物排放提供了理论上的指导.

     

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出版历程
  • 收稿日期:  2011-01-27
  • 修回日期:  2011-06-29
  • 刊出日期:  2012-01-28

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