Comparing the Utility of Coupled Aero-Hydrodynamic Analysis Using a CFD Solver versus a Potential Flow Solver for Floating Offshore Wind Turbines

Mohd Atif Siddiqui, Finn-Christian Wickmann Hanssen (), Marilena Greco and Eirik Anda
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Mohd Atif Siddiqui: Semar AS, Strandveien 12, 1366 Lysaker, Norway
Finn-Christian Wickmann Hanssen: Semar AS, Strandveien 12, 1366 Lysaker, Norway
Marilena Greco: Department of Marine Technology, Norwegian University of Science and Technology (NTNU), 7049 Trondheim, Norway
Eirik Anda: Department of Marine Technology, Norwegian University of Science and Technology (NTNU), 7049 Trondheim, Norway

Energies, 2023, vol. 16, issue 23, 1-30

Abstract: There has been a great effort towards development of renewable energy systems to combat global warming with significant interest towards research and development of floating offshore wind turbines (FOWTs). With commercial projects such as Hywind Scotland, Hywind Tampen and others, there is a shift of industry attention from bottom-fixed offshore turbines to FOWTs. In this work, we focus on comparing industry standard Potential Flow (PF) methods versus Computational Fluid Dynamics (CFD) solvers for a scaled version of the IEA 15 MW turbine and associated FOWT system. The results from the two solvers are compared/validated using experimental thrust values for the fixed turbine. The motions and the thrust for the FOWT system are then compared for the two solvers along with hydrodynamic properties of the floater hull. The wake features downstream of the turbine are analyzed for the fixed and floating turbine using the CFD solver. The wake from the CFD solver is also compared with a simplified PF model. Finally, a simplified cost-benefit analysis is presented for the two solvers to compare the usefulness and utility of a CFD solver as compared to presently used industry-standard PF methods.

Keywords: floating offshore wind turbine; CFD; potential-flow methods; renewable energy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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