Vortex-induced vibrations of wind turbines: From single blade to full rotor simulations

• DOI: 10.1016/j.renene.2024.120381
• Publication Date: 2024-03-25T10:47:10Z
• Authors: Georg Raimund Pir...; Christian Grinder...; Niels Nørmark Sør...; Riccardo Riva
• Keywords: Solver

Vortex-induced vibrations (VIVs) of wind turbine blades are a phenomenon that cannot be predicted sufficiently accurate by low fidelity methods. High methods, such as computational fluid dynamics (CFD) coupled to structural solver come at high cost. Most studies the have so far focused on analysis single blades. For these cases, so-called forced-motion method prescribing blade motion according modeshapes has proven effective. In this article, VIVs IEA 10 MW reference is studied in fluid–structure interaction setup, where full represented and rotor aerodynamics simulated CFD solver. Due cost study limited only case with bunny configuration, 80 degrees pitch 90 yaw. Also purely power dissipation enable future work. A tip amplitude roughly 17 meters reached simulations, which significantly larger limit cycle than what would corresponding isolated simulation. The also shows simulations combining three vibrating modeshape feasible. It further observed, injection or extraction close may change drastically very large amplitudes compared lower amplitudes.