Effect of Compressibility and Surface Waves on the Hydrodynamic Pressures for a Vertical Flood Gate

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The hydrodynamic pressures for a vertical flood gate situated in a discharge sluice are investigated. Exact analytical solutions are presented for the hydrodynamic pressures acting on the gate. This solution is first employed to investigate the hydrodynamic pressures for a horizontally vibrating rigid gate. For this case, regimes of frequencies and water depths are identified for which fluid compressibility and surface waves play a significant role in the hydrodynamic response. Subsequently, the hydrodynamic pressure is analysed for the case of a flexible gate of various boundary conditions. It is concluded that the derived regimes are applicable to flexibles gates as well. Values for the added mass coefficient are presented for various types of gate supports.
Original languageEnglish
Title of host publicationProceedings of the 29th International Ocean and Polar Engineering Conference, ISOPE 2019
EditorsJin S. Chung, Odd M. Akselsen, HyunWoo Jin, Hiroyasu Kawai, Yongwon Lee, Dmitri Matskevitch, Suak Ho Van, Decheng Wan, Alan M. Wang, Satoru Yamaguchi
PublisherInternational Society of Offshore and Polar Engineers (ISOPE)
Number of pages8
ISBN (Print)978-1-880653-85-2
Publication statusPublished - 2019
Event29th International Ocean and Polar Engineering Conference - Honolulu, United States
Duration: 16 Jun 201921 Jun 2019

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792


Conference29th International Ocean and Polar Engineering Conference
Abbreviated titleISOPE 2019
Country/TerritoryUnited States


  • Compressibility
  • Flood gates
  • Fluid-structure interaction
  • Hydrodynamic pressures
  • Surface waves

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