An Experimental Study of Turbulent Premixed Flames : Flame-Structure Study by Measuring Light-Intensity Distribution

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概要

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• The light-intensity distributions of turbulent premixed burner flames for various turbulence intensities were derived from the photometric density distributions on direct photographs, assuming that the flames were axially symmetrical. Based on the obtained light-intensity distributions, the structure of a turbulent premixed flame and the influence of turbulence intensity on it were quantitatively discussed. The turbulent flame-zone thickness was confirmed to increase with the distance from the burner port, and its increasing rate was shown to increase with the turbulence intensity. The maximum probability density of the flame front at a given cross section of the flame zone was found to decrease with increasing the distance from the burner port and to approach an almost constant value. In the region where the maximum value was constant, the probability density of the flame front as well as the turbulent flame-zone thickness was found to increase with the turbulence intensity.

• 一般社団法人日本機械学会の論文

著者

• Suzuki Takuji

  Faculty Of Engineering Ibaraki University

• HIRANO Toshisuke

  Faculty of Engineering, University of Tokyo

• OBA Masaaki

  Tokai Works,Power Reactor and Nuclear Fuel Development Corporation

• TSUJI Hiroshi

  Institute of Space and Aeronautical Science,University of Tokyo

• Hirano Toshisuke

  Faculty Of Engineering Ibaraki University

• Tsuji Hiroshi

  Institute Of Interdisciplinary Research Faculty Of Engineering The University Of Tokyo

• Oba Masaaki

  Tokai Works Power Reactor And Nuclear Fuel Development Corporation

関連論文

• Basic Characteristics of Cylindrical, Electrostatic Probes for the Measurements of Fluctuating Premixed Flames
• An Experimental Study of Turbulent Premixed Flames : Flame-Structure Study by Measuring Light-Intensity Distribution
• Electrostatic Probe Measurements in Propagating Flames : Part 2, The Relation between Flame Propagation Velocity and Ion Current
• Electrostatic Probe Measurements in Propagating Flames : Part 1, The Relation between Flame Front Configuration and Ion Current
• An Analysis of the Positive-Ion Current to a Cylinder in a Weakly Ionized Gas
• No_x Emission Characteristics of a Diffusion Flame Matrix Burner
• Studies of a Diffusion Flame Matrix Burner in a Combustion Chamber with Heat Exchanger
• The Transformation Equations between one- and n-Dimensional Spectra in the n-Dimensional Isotropic Vector or Scalar Fluctuation Field
• Experimental Studies on the Spectrum of Isotropic Turbulence behind Two Grids
• Studies of Diffusion Flame Matrix Burner
• Ion Current to a Cylindrical Electrostatic Probe Inclined to the Flow Directino of a Weakly Ionized, High-Density Gas
• Effects of the Channel Height on the Flow Past a Circular Cylinder : On the Nearcritical Flow
• Effects of Probe Dimensions on the Ion Density Measurements in Combustion Gas Flows

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