This study employs a multi-region coupled method to investigate the motion responses and aerodynamic load variations of the IEA 15 MW semi-submersible floating wind turbine (FOWT) under extreme focused wave conditions. The methodology employs the self-developed MRFoam solver within OpenFOAM to integrate aerodynamic and hydrodynamic analyses. The computational framework combines an incompressible viscous flow model with kOmegaS...

Jacket foundations, with their excellent adaptability and economic efficiency, have been increasingly widely applied in medium-deep water areas. However, the scouring and erosion effects in the marine environment, coupled with complex wind-wave loads, have severely restricted the long-term safe service of jacket foundations. In this study, a structure-pile-soil coupled dynamic response model considering the effects of scour de...

Seabed scour-induced degradation of the pile–soil system, together with the coupled action of seismic, wind and wave loads, poses great challenges to the long-term service safety of jacket-type offshore wind turbines. In this study, an integrated structural numerical model is established with consideration of nonlinear pile–soil interaction. By coupling OpenFAST (Version 3.5.0) and OpenSees (Version 3.7.0), accurate wind and w...

Lower atmospheric ducts significantly alter the propagation of Very High Frequency (VHF) and higher-frequency electromagnetic waves in the marine boundary layer, critically impacting radar and communication systems. Effective duct monitoring is essential for optimizing these systems. Emerging, more economical remote sensing approaches—such as satellite-based remote sensing and the monitoring of ubiquitous shipborne Automatic I...