軸対称放物体の剥離渦の可視化とPIV計測

書誌事項

タイトル別名
  • Visualization and PIV Study of Vortical Flows behind a Paraboloidal-Nose Cylinder with a Towing Model
  • 軸対称放物体の剝離渦の可視化とPIV計測
  • ジク タイショウ ホウブツタイ ノ ハクリウズ ノ カシカ ト PIV ケイソク

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抄録

Visualization and PIV measurements were conducted in a towing air-chamber for wake vortices behind a paraboloidal-nose cylinder at high angles of attack. The evolution of the wake was then measured by a particle image velocimetry (PIV) using cross-sectional and longitudinal cuts which were produced by the sheet illumination of the Nd:YAG laser. To visualize the three-dimensional evolution of flow in the vicinity of wall, we employed a titanium tetrachloride (TiCl4). It was predicted by the PIV study that serial vortex loops with almost constant spacing appear around the main vortex.

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