Aeroelastic Galloping of a Two-dimensional Flat Plate Set Normal to a Uniform Flow with a Wake Splitter Plate Attached to It

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  • 後流スプリッタ板を有し一様流に垂直な二次元平板の空力弾性的ギャロッピング
  • コウリュウ スプリッタバン オ ユウシ イチヨウリュウ ニ スイチョク ナ 2

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This paper reports the results of a wind tunnel experiment conducted to investigate the property of aeroelastic galloping and the pressure distribution of a two-dimensional flat plate set normal to a uniform flow with a wake splitter plate attached to it. Measurements show that (1) the instability of galloping starts and develops rapidly as the streamwise depth of the splitter plate exceeds a certain value, and (2) at around this singular depth, the pressure at the trailing edge of the splitter plate reaches a minimum. The correlation between the onset of galloping and the pressure variation, mentioned above, is similar to that observed for rectangular, or D-shaped cross-sectional cylinders.

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