Offshore floating vertical axis wind turbines, dynamics modelling state of the art. Part III: Hydrodynamics and coupled modelling approaches

Frequency-domain characteristics of aerodynamic loads of offshore floating vertical axis wind turbines

“…Whilst simulations are carried out in the time domain to capture nonlinear, transient and time-dependent dynamic couplings not captured by frequency-domain simulations, Borg and Collu [11], the results analysis is carried out in the frequency domain to gain insights into the characteristic behaviour of aerodynamic loads.…”

An aerodynamic modelling methodology for an offshore floating vertical axis wind turbine

“…1(b) with the primary aim that the turbine design would substantially reduce the cost of offshore wind energy generation [4], [10], [11]. Cahay et al [9] purposed the VertiWind concept Fig.…”

“…An alternative concept is provided by Akimoto et al [4] and Nakamura et al [11] (Fig.1(d)) whereby the turbine is mounted on a spar buoy that rotates with the turbine as one which allows the weight of the turbine to be supported directly by its own buoyancy. This negates the need for large bearings and allows for substantially lower maintenance requirements [10].…”

Offshore floating wind parks in the deep waters of Mediterranean Sea

“…In [30] a comprehensive analysis and comparison of the levelised cost of energy, for different offshore floating wind turbine concepts, is presented. The development of coupled model of dynamics regarding vertical axis floating wind turbines as well as suitable semianalytical hydrodynamic models are presented in [31].…”