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Effects of wave-current interaction on floating bodies - OMAE2016-54868

Effects of wave-current interaction on floating bodies - OMAE2016-54868

Category
Part of a book/report
Abstract
Wave-current interaction effects may significantly influence the mean wave drift forces on a structure as well as the motion responses and wave elevation around the structure. Additionally, the drift force may be used to estimate the wave drift damping of a moored structure. A new numerical potential theory code for industry applications (MULDIF) has been recently developed, where the hydrodynamic interaction between waves and current of arbitrary direction with large volume structures is consistently included. The code also handles multiple bodies and finite water depth including wave-current interaction effects. The aim has been to create a robust and easy-to-use practical tool. Initial validation studies against model tests have been conducted. The numerical results show a strong heave-pitch coupling due to the presence of the current. Preliminary results for a semi-submersible show good agreement for the motions provided that the mooring used in the model tests are accounted for. The free surface elevation around the semi-submersible is presented in contour plots.
Language
English
Author(s)
  • Hermundstad Elin Marita
  • Hoff Jan Roger
  • Stansberg Carl Trygve
  • Baarholm Rolf Jarle
Affiliation
  • SINTEF Ocean / Skip og havkonstruksjoner
  • Statoil
Year
2016
Published in
International Conference on Offshore Mechanics and Arctic Engineering [elektronisk ressurs] : [proceedings]
ISSN
1523-651X
Publisher
ASME Press
Book
ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering Volume 1: Offshore Technology; Offshore Geotechnics
Booklet
1
ISBN
978-0-7918-4992-7