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Prediction of Green Water and Wave Loading Using a Navier-Stokes Based Simulation Tool

[+] Author Affiliations
K. M. Theresa Kleefsman, Geert Fekken, Arthur E. P. Veldman

University of Groningen, Groningen, The Netherlands

Tim H. J. Bunnik, Bas Buchner

MARIN, Wageningen, The Netherlands

Bogdan Iwanowski

CorrOcean ASA, Sandvika, Norway

Paper No. OMAE2002-28480, pp. 745-752; 8 pages
doi:10.1115/OMAE2002-28480
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

Results of computer simulation of wave and green water loading on floating offshore structures are presented. The simulation program used is a CFD code which solves the Navier-Stokes equations that describe flow of incompressible viscous fluids. The Navier-Stokes equations are discretised using a Finite Volume method on a Cartesian grid with staggered variables. The free surface is displaced using a Volume Of Fluid based algorithm combined with a local height function. In this paper results of validation and sensitivity tests of simulation of green water on the foredeck of an FPSO are presented. Here, the waves are modeled as a dam of water around the deck which is suddenly released. Furthermore, wave loading from impact of regular waves on a SPAR platform is computed and compared with experimental results. The program is found to be robust and the computational results show good agreement with the experiments.

Copyright © 2002 by ASME
Topics: Simulation , Waves , Water

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