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Performance of Formulations for Whitecapping in Wave Prediction Models

[+] Author Affiliations
Gerbrant Ph. van Vledder, David P. Hurdle

Alkyon Hydraulics Consultancy and Research, Emmeloord, The Netherlands

Paper No. OMAE2002-28146, pp. 155-163; 9 pages
doi:10.1115/OMAE2002-28146
From:
  • ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering
  • 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 2
  • Oslo, Norway, June 23–28, 2002
  • Conference Sponsors: Ocean, Offshore, and Arctic Engineering Division
  • ISBN: 0-7918-3612-6 | eISBN: 0-7918-3599-5
  • Copyright © 2002 by ASME

abstract

This paper describes work currently being carried out to examine possible methods to improve the computation of the dissipation by whitecapping in third generation wave prediction models. Such alternatives are needed to avoid unphysical dissipation behavior in the case of double-peaked wave spectra. First, an overview is given of the problems associated with the formulation for whitecapping that is now widely used in wave prediction models. Second, a summary is given of existing suggestions to improve the whitecapping formulation. Third, a number of examples are given with the new formulations to illustrate the potential improvements.

Copyright © 2002 by ASME
Topics: Waves

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