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The article reports on a study concerning the hydrodynamic performance of floating offshore wind turbines (FOWT). Topics discussed include the use of a cylindrical spar platform and a heave plate platform to study the hydrodynamic force and motion response of FOWTs, the use of potential theory and Morison formulation to compute the hydrodynamic performance difference between the two types of spar platforms and the viscous force produced by the heave plate.

The article reports on a study concerning the use of numerical simulation to assess a transition piece (TP) installed on top of a monopile foundation for offshore wind turbines. Topics discussed include the process of installing the TP, the impact of the TP on the monopile structure and the use of the sensitivity analysis method to examine the impact velocity and the inclination angle of the TP.

The article reports on a study which compares a floating vertical axis wind turbine (FVAWT) with a floating horizontal axis wind turbine (FHAWT), both mounted on a semi-submersible. Topics discussed include the features of each type of wind turbine, the use of coupled nonlinear time domain simulation in comparing the wind turbines and domain codes used in constructing each turbine.