Aerodynamic performance of semi-submersible floating wind turbine under pitch motion

A Review of Recent Advancements in Offshore Wind Turbine Technology

“…There are different computational methods for handling movements of a turbine and its base, while dealing with kinematics of turbines with moving platforms. Commonly employed techniques in computational fluid dynamics (CFD) include dynamic meshing [13], overset or Chimera grids [14][15][16][17][18] and sliding mesh technique or arbitrary mesh interfaces (AMI) [19]. Each of these methods has its own strengths and specific limitations.…”

“…To establish the reliability of offshore wind turbines for continuous power generation, it is imperative to understand the impact of turbulent flow conditions on their aerodynamic performance and underlying fluid-structure-acoustic interaction. Traditionally, computational modeling of turbulent flows for these systems involves using various Reynolds-Averaged Navier-Stoke (RANS) equations-based models [13][14][15]19,24,[26][27][28][29], large eddy simulations (LES) [30,31], and different versions of detached eddy simulations (DES) [16][17][18]32]. Other low-order wake models [33] are also introduced along with potential flow-based methods to handle unsteady flow dynamics.…”

“…Large values of β o also make the rotor experience stall, which deteriorates its aerodynamic performance. Moreover, Shi et al [15] has reported that temporal thrust profiles are synchronized with incident waves. Thus, thrust increases when low-frequency wave encounters the turbine.…”