3D NUMERICAL SIMULATION OF FLOWS AROUND MONOPILE TYPE FOUNDATION OF OFFSHORE WIND TURBINE WITH UNDERWATER SESMIC CONTROL PANEL

Abstract

 The monopile is used as the main type of foundation of offshore wind power generation. As the countermeasure to reduce vibration during earthquakes, a new structure has been proposed, by attaching a cylindrical underwater seismic control panel to the monopile. In this study, numerical simulation of flows around monopile type foundation with underwater seismic control panel is carried out, using a 3D flow model in generalized curvilinear moving coordinate system. Through comparison with the experimental results, it was confirmed that the sloshing in the seismic control panel generates a fluid force to suppress vibration.