FAST Model Calibration and Validation of the OC5-DeepCwind Floating Offshore Wind System Against Wave Tank Test Data

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7 Scopus Citations

Abstract

During the course of the Offshore Code Comparison Collaboration, Continued, with Correlation (OC5) project, which focused on the validation of numerical methods through comparison against tank test data, the authors created a numerical FAST model of the 1:50-scale DeepCwind semisubmersible system that was tested at the Maritime Research Institute Netherlands ocean basin in 2013. This paper discusses several model calibration studies that were conducted to identify model adjustments that improve the agreement between the numerical simulations and the experimental test data. These calibration studies cover wind-field-specific parameters (coherence, turbulence), hydrodynamic and aerodynamic modeling approaches, as well as rotor model (blade-pitch and blade-mass imbalances) and tower model (structural tower damping coefficient) adjustments. These calibration studies were conducted based on relatively simple calibration load cases (wave only/wind only). The agreement between the final FAST model and experimental measurements is then assessed based on more-complex combined wind and wave validation cases.

Original languageAmerican English
Pages529-538
Number of pages10
StatePublished - 2017
Event27th International Ocean and Polar Engineering Conference, ISOPE 2017 - San Francisco, United States
Duration: 25 Jun 201730 Jun 2017

Conference

Conference27th International Ocean and Polar Engineering Conference, ISOPE 2017
Country/TerritoryUnited States
CitySan Francisco
Period25/06/1730/06/17

Bibliographical note

See NREL/CP-5000-68080 for preprint

NREL Publication Number

  • NREL/CP-5000-70763

Keywords

  • Aerodynamics
  • Calibration
  • FAST
  • Floating offshore wind turbine
  • Hydrodynamics
  • Modeling
  • Validation
  • Wind field

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