A High-order Accurate Spectral Element-based Time-Domain Simulation of a Model-Scale Floating Offshore Wind Turbine

Jens Visbech, Harry B. Bingham, Claes Eskilsson, Johannes Palm, Allan P. Engsig-Karup

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This paper describes a new high-order composite numerical model for simulating moored floating offshore bodies. We focus on a floating offshore wind turbine and its static equilibrium and free decay. The composite scheme models linear
to weakly nonlinear motions in the time domain by solving the Cummins equations. Mooring forces are acquired from a discontinuous Galerkin finite element solver. Linear hydrodynamic coefficients are computed by solving a pseudo- impulsive radiation problem in three dimensions using a spectral element method. Numerical simulations of a moored model-scale floating offshore wind turbine were performed and compared with experimental measurements for validation, ultimately showing a fair agreement.
Original languageEnglish
JournalInternational Journal of Offshore and Polar Engineering
Volume34
Issue number3
Pages (from-to)254-262
ISSN1053-5381
DOIs
Publication statusPublished - 2024

Keywords

  • Spectral element method
  • High-order numerical scheme
  • Wave-body interactions
  • First FOWT Comparative Study
  • Water waves
  • Marine hydrodynamics

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