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The Diffraction of Multidirectional Random Waves by Rectangular Submarine Pits

[+] Author Affiliations
Hong Sik Lee

Chung-Ang University, Gyunggi-Do, South Korea

A. Neil Williams

University of Houston, Houston, TX

Paper No. OMAE2002-28058, pp. 77-83; 7 pages
doi:10.1115/OMAE2002-28058
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 diffraction of multidirectional random surface waves with one or more rectangular submarine pits is investigated theoretically. The incident wave conditions are specified using a discrete form of the Mitsuyasu directional spectrum. The numerical model involves the superposition of regular-wave diffraction solutions based on linearized shallow water theory obtained by a two-dimensional boundary integral approach for water of uniform depth. Numerical results are presented for multi-directional random waves that illustrate the effect of the various wave and pit parameters on the diffraction characteristics of typical single and multiple pit systems.

Copyright © 2002 by ASME

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