Characteristics of Tsunami Wave Pressure Focusing on Fluid Motion in Front of Land Structure

• MIZUTANI Natsuki

  Osaka Sangyo University

• LIU Xiaohui

  Fukui Construction Co., Ltd.

• IINO Yuki

  Daitetsu Kogyo Co., Ltd.

• MIYAJIMA Masahiro

  Osaka Sangyo University

Bibliographic Information

Other Title

• 構造物前面の流体現象に着目した津波波圧の特性
• コウゾウブツ ゼンメン ノ リュウタイ ゲンショウ ニ チャクモク シタ ツナミ ハアツ ノ トクセイ

Abstract

Impact tsunami wave pressure acting on near the bottom of a land structure was measured with high speed video images of fluid motion in front of the structure. The value of the maximum impact pressure reached 10 times that of the hydrostatic pressure. The impact pressure changed with some patterns of the fluid motion. The patterns also changed with Fr number. Under low Fr number conditions, the gauge pressure is composed of the dynamic pressure by the maximum of the fluid velocity and the hydrostatic pressure which depends on the height of fluid raising along the front wall. However, Fr number becomes higher, the gauge pressure is getting equal to the dynamic pressure only. The maximum value of the impact pressure can be fit into the function of 0.5 times square of the velocity.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 70 (2), I_836-I_840, 2014

  Japan Society of Civil Engineers

Keywords

• Tsunami wave
• Inpact wave pressure
• Land structure
• High speed image

Details

• CRID: 1390001205321356160
• NII Article ID: 130004706991
• NII Book ID: AA12508551
• DOI: 10.2208/kaigan.70.i_836
• ISSN: 18838944
• ISSN: 18842399
• NDL BIB ID: 025932615
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025932615
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed