This paper presents the comparison between three different numerical models with the results of the experimental campaign conducted by the University of Plymouth, in the context of the First FOWT Comparative Study. Experimental tests were conducted to evaluate the hydrodynamic properties of a 1:70 scaled VolturnUS-S semi-submersible floating platform supporting a 15 MW offshore reference wind turbine coupled with the mooring system. This paper uses three different software with increasing numerical accuracy: MOST, OrcaFlex, and Star-CCM+. MOST is a numerical model developed by the Politecnico di Torino and implemented in a MATLAB-Simscape environment; OrcaFlex is a commercial software dedicated to offshore structure analysis, especially used for the design of mooring systems; and Star-CCM+ is a commercial software for computational fluid dynamics analysis based on unsteady Reynolds-averaged Navier-Stokes equations. The validation of the experimental tests includes free decay and focused wave tests. All the experiments are performed considering the 1:70 scaled VolturnUS-s semi-submersible floating platform in its moored configuration. The results show how linear models, if properly calibrated, can provide satisfactory results with a low computational cost.
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September 2024
Journal Paper|
September 09 2024
A Comparison Between Different Numerical Models and Experimental Tests for the Study of Floating Offshore Wind Turbines
Francesco Niosi;
Francesco Niosi
Department of Mechanical and Aerospace Engineering (DIMEAS), Politecnico di Torino, Turin, Italy
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Oronzo Dell’Edera;
Oronzo Dell’Edera
Department of Mechanical and Aerospace Engineering (DIMEAS), Politecnico di Torino, Turin, Italy
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Lorenzo Dutto;
Lorenzo Dutto
Department of Mechanical and Aerospace Engineering (DIMEAS), Politecnico di Torino, Turin, Italy
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Giovanni Bracco
Giovanni Bracco
Department of Mechanical and Aerospace Engineering (DIMEAS), Politecnico di Torino, Turin, Italy
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Int. J. Offshore Polar Eng. 34 (03): 263–272.
Paper Number:
ISOPE-24-34-3-263
Article history
Received:
February 06 2024
Revision Received:
July 01 2024
Accepted:
July 01 2024
Published Online:
September 09 2024
Citation
Niosi, Francesco, Dell’Edera, Oronzo, Dutto, Lorenzo, and Giovanni Bracco. "A Comparison Between Different Numerical Models and Experimental Tests for the Study of Floating Offshore Wind Turbines." Int. J. Offshore Polar Eng. 34 (2024): 263–272. doi: https://doi.org/10.17736/ijope.2024.pf27
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