Development of Large-scale PIV for the Wake Flow of Full Scale Vehicle

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  • 実車後流を計測可能にするラージスケールPIVの開発
  • ジッシャ コウリュウ オ ケイソク カノウ ニ スル ラージスケール PIV ノ カイハツ

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To measure the flow around full scale vehicle and to understand its aerodynamic phenomenon is effective for the validation of CFD and the advancement of aerodynamic design. <br>  The flow around vehicle includes various scales of vortexes, so PIV is suitable measurement method to understand the relationship between these vortexes and aerodynamic performance, but measurable domain of PIV is not sufficient for full scale vehicle. <br>  Measurable region of Large-scale PIV developed by us is sufficient for the flow around just a component like side mirror or A-pillar, but is not sufficient for the wake flow of full scale vehicle that includes all of phenomenon. <br>  In this study, the relationship of magnification factor of camera, laser power density and PIV’s accuracy are clarified to realize ultra-large-scale PIV which is adopted data merged method with high accuracy.

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