On the Noise of Diffusion Flames

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概要

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• The mechanism of the generation and the characteristics of the noise associated with combustion are studied. It is shown that the dominant factors on the generation of the combustion noise are the velocity turbulences and the entropy turbulences, acting as equivalent acoustic dipoles and monopoles, respectively. Especially, concerning the diffusion flame of rich-premixed gaseous fuel, the noise in the laminar flame is mostly due to the entropy turbulences and of monopole-like characteristic, and that in the turbulent flame is mainly attributed to the velocity turbulence and of dipole-like characteristic. The noise intensities are proportional to the second and the fourth power of the mean flow velocity, respectively, and to the cubic power of the diameter of the nozzle.

• 一般社団法人日本機械学会の論文

著者

• Kotake Susumu

  Institute Of Space And Aeronautical Science University Of Tokyo

• HATTA Keizo

  Institute of Space and Aeronautical Science, University of Tokyo

• Hatta Keizo

  Institute Of Space And Aeronautical Science University Of Tokyo

関連論文

• Effects of Reduced Gravity on Nucleate Boiling
• Momentum and Heat Transfer of Non-Newtonian Laminar Flows Past a Flat Plate (the Transactions of the Japan Society of Mechanical Engineers) : Papers published in the Bulletin of the JSME are not included here
• Jet Noise : 3rd Report, Effect of the Shape of Nozzle-Exit
• On the Deposit-Induced Surface Ignition of Internal Combustion Engines
• On the Noise of Diffusion Flames
• Flow and Heat Transfer of Non-Newtonian Fluids on a Flat Plate

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