Numerical Simulation of the Interaction Between FOWT and Focused Wave by a Hybrid Method

Based on a hybrid method coupling FNPT-based QALE-FEM and CFD, a self-developed solver QaleFoam is applied to generate the focused wave and simulate the motion response of the floating offshore wind turbine (FOWT), and the discontinuous Galerkin finite element method is used to obtain the force and moment of the mooring system in every time step. The static equilibrium tests of the wind turbine with and without mooring are carried out first. Then, three decay tests in the freedom of heave, surge, and pitch are carried out. Finally, the focused waves are generated, and the interaction between the focused wave and the FOWT with the mooring system is simulated. All the computed results are compared with the experimental results for validation.