Distinctive Features of Air Flow Through Large-Scale Floating Wind Turbine

2008 
This paper presents new results in the research and development of recently proposed design of the offshore wind power plant with large-scale floating turbine (WEMU design). The main objective of this study is to investigate the vertical vortex inside the turbine, flow interaction with the turbine due to the pitch caused by waves, and to estimate the additional pitching moment. Numerical experiments for new geometrical model design of rotor are carried out using simulation tools based on a finite volume method. Two stable vortexes are found between the upper and low rings, which connect the blades along vertical direction. Additionally, nonlinear equations for the floating rotor equilibrium are solved by an iterative Newton method. The floating rotor is proved to have sufficient stability.
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