Unsteady Vortex Structures in the Wake behind Bluff Bodies

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概要

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• Unsteady vortex structure in the wake behind bluff body was experimentally investigated by wind tunnel experiment. A flexible rectangular plate, which was made of a soft polyurethane block, shows the sway motion and flow-induced vibration caused by fluid force. Phase-averaged vortex structures behind the flexible plate were educed by Particle Image Velocimetry (PIV) using light sensors. The size of recirculation region and upwash flow in the wake were influenced by unsteady motion of the plate vibration.

• 一般社団法人 日本機械学会の論文

著者

• Ishikawa Hitoshi

  Dept. Of Psychosomatic Medicine Tokyo Univ. School Medicine

• ICHIKAWA Seiji

  Dept. of Mechanical Engineering, Tokyo University of Science

• YAMADA Shunsuke

  Dept. of Mechanical Engineering, National Defense Academy

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