The dynamic response of floating offshore wind turbine platform in wave–current condition

In this paper, the fluid–structure interaction of floating offshore wind turbine (FOWT) platforms under complex ocean conditions is investigated using OpenFOAM and in-house developed models. Two types FOWT platform, i.e., a semi-submersible platform barge are studied for their dynamic responses to either wave or current. The results reveal that exhibits larger cross-flow motion lock-in phenomenon, while experiences smaller with no significant within velocity range examined. combined wave–current further different angles between current, current speeds, parameters. Unlike other investigations focusing on colinear interaction, in which waves usually mitigate vortex-induced (VIM); here, we find might lead an enhanced VIM large angle wave. evaluation effect factor shows largest height region does not most dangerous scenario, herein, motion. Instead, period can induce even