Experiments on a Two-Dimensional Impinging Jet on a Wedge : Turbulence Properties and the Energy Balance

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概要

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• Turbulence properties and the balance of turbulence energy in a two-dimensional impinging jet on a wedge are investigated. The angles between the wedge surface and the jet axis φ are 30°and 45°. The profiles of u'/U_m, v'/U_m and (<q^2>^^^-)/(2Um^2) in the fully developed flow region are larger than those of the two-dimensional wall jet, but the profile of w'/U_m is almost the same as that of the two-dimensional wall jet, and all profiles exhibit no similarity. Each term of the production, dissipation and diffusion in the turbulence energy equation is larger than that of the two-dimensional wall jet except for the advection term. The production and the diffusion terms in the case of φ=45°are larger than those in the case of φ=30°. The pattern of the isopleths of (<q^2>^^^-)/(2U^2_j) in the impinging region differs for each case of φ=30°and 45°.

• 一般社団法人日本機械学会の論文
• 1990-02-15

著者

• YAMASHITA Shintaro

  Department of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, Nati

• NAKAMURA Ikuo

  Department of Mechanical Engineering, Nagoya University

• Nakamura I

  Department Of Mechanical Engineering Nagoya University

• Nakamura Ikuo

  Nagoya University

• Yamashita Shintaro

  Department Of Mechanical Engineering Nagoya University

• Nakamura I

  Nagoya Univ. Nagoya

• Nakamura I

  Chiba Univ. Chiba Jpn

• YAMADA Hiroya

  Daido Institute of Technology

• YANO Haruhisa

  Daido Institute of Technology

• Yamashita S

  Graduate School Of Engineering Hokkaido University

• Nakamura Ikuo

  Department Of Applied Physics Faculty Of Engineering University Of Tokyo

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