Discussion of a Wrinkled Laminar Flamelet Model in a Diffusion Flame in Grid Turbulence

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概要

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• The temperature has been measured in a field in which laminar hydrogen (6.0m/s at the center of a burner exit) was injected into a coflowing air stream (6.0m/s) with certain kinds of grid turbulence. It is shown that the ratio of a laminar flame length to the turbulent one is proportional to the turbulent Reynolds number, Re_l, (integral scale is considered a characteristic length) in the measured extent (Re_l≦1000), and therefore, that the integral scale of a reactant flow is an important parameter for the flames in this paper. The width of a flame displacement is estimated from the temperature profiles when the flame is assumed to be a wrinkled laminar flamelet. The width is also measured directly by a flow visualization method. Both the widths obtained by the two different methods agree well with each other. This indicates that the turbulent flame in this paper can be treated as a wrinkled laminar flamelet.

• 一般社団法人日本機械学会の論文
• 1991-11-15

著者

• UEDA Toshihisa

  Department of Applied Biological Science, Faculty of Agriculture, Saga University

• Ueda T

  Department Of Mechanical Engineering Keio University

• Ueda Toshihisa

  Department Of Applied Biological Science Faculty Of Agriculture Saga University

• Ueda T

  Keio Univ. Kanagawa Jpn

• MANAKO Hiroyasu

  Department of Mechanical Engineering, Keio University

• MIZOMOTO Masahiko

  Department of Mechanical Engineering, Keio University

• Manako Hiroyasu

  Department Of Mechanical Engineering Keio University

• Mizomoto M

  Keio Univ. Yokohama Jpn

• Mizomoto Masahiko

  Department Of Mechanical Engineering Graduate School Of Science And Technology Keio University

• Ueda Toshihisa

  Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University

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