Development of a Multi-Layer Sheet Scanning PTV and Application to 3-D Flow Visualization Measurements

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  • Nezu Iehisa
    京都大学大学院工学研究科社会基盤工学専攻
  • Sanjou Michio
    京都大学大学院工学研究科社会基盤工学専攻
  • Kamiya Atsushi
    京都大学大学院修士課程, 工学研究科社会基盤工学専攻

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  • 多断層シートスキャニングＰＩＶの開発と３次元流体可視化計測に関する研究
  • タダンソウ シートスキャニング PIV ノ カイハツ ト 3ジゲン リュウタイ カシカ ケイソク ニ カンスル ケンキュウ

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Abstract

We developed a multi-layer scanning 3-D PIV system successfully, in which the different elevated laser light sheets were projected into the water flume almost simultaneously using a specially-designed rotation instrument This PIV system is capable to measure instantaneous velocity components in all three dimensional volume at the same time, and was applied to open-channel flows over a triangle-shaped mound.<BR>In this study, the out of plane component can also be evaluated by using the continuity equation. Furthermore, in order to examine the accuracy of this sheet-scanning PIV method, these PIV results were compared with the data measured by a laser Doppler anemometer (LDA), and it was recognized that the measured data of the present PIV was in good agreement with LDA data.

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