• Title/Summary/Keyword: 낙하

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An Experimental Study on the Flow Characteristics around Wedge Type Structure by Slamming (슬래밍에 의한 쐐기형 구조물 주위의 유동특성에 관한 실험적 연구)

  • Oh, Seung-Jin;Cho, Dae-Hwan
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.19 no.2
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    • pp.213-218
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    • 2013
  • This paper presents are experimental investigation to figure out slamming impact pressure and flow characteristics of a wedge type structure in free fall. The flow field has been obtained by 2-frame grey level cross correlation PIV(Particle Image Velocimetry) method, the impact presure of free fall structure by a pressure acquisition system apply to Dewetron system. The angles between a model and the free surface are adapted $15^{\circ}$, $25^{\circ}$, $35^{\circ}$ and $45^{\circ}$ respectively. Velocity field of water exit has higher better than water entry. The impact pressure under the bottom of the model ha been appeared higher values at 15 degrees than 45 degrees, and also at P1.