F309 Visualization near Wall Streak Structure in Turbulent Boundary Layer using Micro Shear Stress Imager(Near-wall turbulence and its control)

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概要

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• Shear stress distribution was measured by using the micro shear stress imager, and examined about the relationship between velocity change near the wall and shear stress change on it. First, it took out that the characteristics of the velocity change by using the VITA technique, and the characteristics of a shear stress change what is the same time as velocity data were extracted at Reynolds number Re=10,000, 14,000, 20,000. It could be taken the characteristics of a shear stress change along with ejection of the bursting motion. Next, the characteristics of the bursting motion was extracted from the shear stress change. VITA technique was used for the shear stress change of one sensor whose correlation with a velocity change was high. The characteristics of an extracted shear stress change were compared with the characteristics of a velocity change, and the characteristics of the bursting motion was extracted more clearly.

• 一般社団法人日本機械学会の論文
• 2000-10-01

著者

• Fujita Hajime

  Nihon Univ. Tokyo Jpn

• MIYAGI Norimasa

  Department of Mechanical Engineering, College of Science and Technology, Nihon University

• Miyagi Norimasa

  Department Of Mechanical Engineering College Of Science And Technology Nihon University

• Miyagi Norimasa

  Graduate School, Nihon University

• Iwadare Yuji

  Graduate School, Nihon University

• Kimura Motoaki

  Nihon University

• Ho Chit-Ming

  Mechanical and Aerospace Engineering Department, University of California

• Ho Chit-ming

  Mechanical And Aerospace Engineering Department University Of California

• Iwadare Yuji

  Graduate School Nihon University

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