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Computation of Hydrodynamic Interaction of Multiple Bodies in Waves With a Panel-Free Method

[+] Author Affiliations
Wei Qiu

Memorial University of Newfoundland, St. John’s, NL, Canada

Hongxuan Peng

Oceanic Consulting Corporation, St. John’s, NL, Canada

Sander M. Calisal, Jianhong Wang

University of British Columbia, Vancouver, BC, Canada

Paper No. OMAE2005-67316, pp. 729-735; 7 pages
doi:10.1115/OMAE2005-67316
From:
  • ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering
  • 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 2
  • Halkidiki, Greece, June 12–17, 2005
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4196-0 | eISBN: 0-7918-3759-9
  • Copyright © 2005 by ASME

abstract

The hydrodynamic interaction of multiple floating bodies in waves has been computed in the frequency domain based on the panel-free method developed earlier for the time-domain analysis. The integral equations are first desingularized by removing the singularity in the Green function and then discretized by Gaussian quadrature over the exact geometry. Non-uniform rational B-splines (NURBS) surfaces are employed to represent the exact body surface. Robustness and accuracy of the method has been demonstrated by its application to vertically floating cylinders. Computed motions, hydrodynamic coefficients and wave exciting forces due to interactions are presented and compared with other published results. The numerical method has also been applied to the performance study of a wave energy converter. The computed results were compared with the experimental ones.

Copyright © 2005 by ASME
Topics: Waves , Computation

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