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Hydrodynamic Characteristics of Submerged Impermeable and Seaside Perforated Semicircular Breakwaters

[+] Author Affiliations
Govindasamy Dhinakaran, Vallam Sundar, Renganathan Sundaravadivelu

Indian Institute of Technology, Madras, India

Kai-Uwe Graw

University of Leipzig, Leipzig, Germany

Paper No. OMAE2002-28188, pp. 401-408; 8 pages
doi:10.1115/OMAE2002-28188
From:
  • ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering
  • 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 1
  • Oslo, Norway, June 23–28, 2002
  • Conference Sponsors: Ocean, Offshore, and Arctic Engineering Division
  • ISBN: 0-7918-3611-8 | eISBN: 0-7918-3599-5
  • Copyright © 2002 by ASME

abstract

The semicircular breakwater (SBW) is one of the varieties of breakwaters, which has emerged recently. The world’s first semicircular breakwater has been constructed at Miyazaki port in Japan. The dynamic pressures due to regular waves exerted on a SBW with 7% of its seaside surface area with perforations were measured. The variations of dimensionless pressures for three different water depth (hw ) to total height of the model (ht ), ratios are presented and discussed in this paper. In addition, the reflection and transmission characteristics of the perforated SBW as a function of scattering parameter, ka is reported. The results on the above stated variables for a seaside perforated SBW are compared with the results for an impermeable SBW.

Copyright © 2002 by ASME
Topics: Breakwaters

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