Numerical assessment of a Tension-leg platform wind turbine in intermediate water using the Smoothed Particle Hydrodynamics method

Bonaventura Tagliafierro, Madjid Karimirad*, Ivan Martınez-Estevez, Jose M. Domınguez, Giacomo Viccione, Alejandro J.C. Crespo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)
128 Downloads (Pure)

Abstract

The open-source code DualSPHysics, based on the Smoothed Particle Hydrodynamics method for solving fluid mechanics problems, defines a complete numerical environment for simulating the interaction of floating structures with ocean waves, and includes external libraries to simulate kinematic- and dynamic-type restrictions. In this work, a full validation of the SPH framework using experimental data available for an experimental test campaign on a 1:37-scale floating offshore wind turbine tension-leg platform (TLP) is presented. The first set of validation cases includes a surge decay test, to assess the quality of the fluid–solid interaction, and regular wave tests, which stimulate the mooring system to a large extent. During this phase, tendons (tension legs) that are simulated by MoorDyn+ are validated. Spectral comparison shows that the model is able to capture the surge and pitch dynamic amplification that occurs around the resonant fundamental mode of vibration. This work concludes with a numerical investigation that estimates the response of TLP under extreme events defined using multiple realizations of irregular sea states; the results suggest that the tendon loads are sensitive to the sea-state realization, providing maximum tendon peak forces in a range of ±10% about the mean. Furthermore, it is shown that the load pattern that forms from considering the relative position of the tendons to the incident wave direction leads to higher forces (≈20%).
Original languageEnglish
Article number3993
Number of pages23
JournalEnergies
Volume15
Issue number11
Early online date28 May 2022
DOIs
Publication statusPublished - Jun 2022

Keywords

  • DualSPHysics
  • MoorDyn+
  • computational fluid dynamics
  • tension-leg platforms
  • floating offshore wind turbines
  • Smoothed Particle Hydrodynamics
  • multiphysics simulations

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