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气体示踪法研究燃烧器横向湍流混合扩散特性
引用本文:刘建忠,曹欣玉,姚强,赵翔,黄镇宇,周俊虎,吴晓蓉,岑可法.气体示踪法研究燃烧器横向湍流混合扩散特性[J].力学学报,1996,28(3):347-351.
作者姓名:刘建忠  曹欣玉  姚强  赵翔  黄镇宇  周俊虎  吴晓蓉  岑可法
作者单位:浙江大学热能工程研究所
摘    要:用气体示踪法对侧边风燃烧器弱旋流一次风和侧边直流二次风横向湍流混合扩散特性进行了详细研究,讨论了各截面混合物浓度分布规律及混合强度分布规律,分析对燃料着火的影响,同时利用湍流运动方程反算气体湍流扩散系数

关 键 词:燃烧器  横向混合  湍流扩散  气体示踪法

STUDIES OF BURNER LATERAL TURBULENT MIXING AND DIFFUSION USING GAS TRACER ANALYSIS
Liu Jianzhong,Cao Xinyu,Yao Qiang,Zhao Xiang,Huang Zhenyu,Zhou Junhu,Wu Xiaorong,Cen Kefa.STUDIES OF BURNER LATERAL TURBULENT MIXING AND DIFFUSION USING GAS TRACER ANALYSIS[J].chinese journal of theoretical and applied mechanics,1996,28(3):347-351.
Authors:Liu Jianzhong  Cao Xinyu  Yao Qiang  Zhao Xiang  Huang Zhenyu  Zhou Junhu  Wu Xiaorong  Cen Kefa
Abstract:The characteristics of lateral turbulent mixing and diffusion between primary air(low swirl) and secondary air(no swirl) of the burner with side located secondary air were studied carefully by gas tracer analysis. The profiles of mixture concentration and mixing intensity at various cross sections along the axis were discussed. The effects of them on fuel ignition were also analyzed. The turbulent exchange coefficient is calculated from time mean equation. The results are of practical significance for design of the burner.
Keywords:burner  lateral mixing  turbulent diffusion  gas tracer analysis
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