A Comparative Investigation of Prevalent Hydrodynamic Modelling Approaches for Floating Offshore Wind Turbine Foundations: A TetraSpar Case Study

Numerical models have been used extensively in the design process of TetraSpar floating offshore wind turbine (FOWT) foundation to optimize and investigate influence from a number structural environmental conditions. In traditional design, either Morison approach or linear boundary element method (BEM) is applied hydrodynamic loads on structure. The present study investigated compared these two methods evaluated their applicability FOWT concept. Furthermore, hybrid model containing load contributions both approaches was evaluated. This focuses motion response. evaluation, data BEM codes are applied, while commercial software package OrcaFlex utilized for time series simulations coupled investigation highlights difference between modelling importance particularly drag inertia contributions. By optimizing input coefficients, reasonable agreement can be achieved.