CFD Analysis of Water Ring Arising about Floating Rotor of Offshore Wind Power Plant

摘要

Paper describes CFD calculations of water flow about floating rotor for new large-scale vertical axis wind turbine supported by pontoon with columns (WEMU type). The research goals are to verify flow mode, to calculate a hydrodynamic power loss, to find out an influence of waves. Water ring arises about the pontoon during rotation. Power loss is proportional to second power of rotational velocity. The ring can drift to outside because of water acceleration and aside due to waves.