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Wake Structures and Performance of Wind Turbine Rotor with Harmonic Surging Motions Under Laminar and Turbulent Inflows by Li, YuanTso; Yu, Wei; Sarlak, Hamid is a scholarly article available to read on EtoBox.

What is Wake Structures and Performance of Wind Turbine Rotor with Harmonic Surging Motions Under Laminar and Turbulent Inflows about?

This study presents a comprehensive numerical analysis of a full-scale horizontal-axis Floating Offshore Wind Turbine (FOWT) subjected to harmonic surging motions under both laminar and turbulent inflow conditions. Utilizing high-fidelity Computational Fluid Dynamics (CFD) simulations, namely Large-Eddy Simulation (LES) with Actuator Line Model (ALM), this research investigates the rotor performance, wake characteristics, and wake structures of a surging FOWT in detail. The study delves into the influence of varying inflow turbulence intensities, surging settings, and their interplay on the aerodynamic performance and the wake aerodynamics of a FOWT rotor. The results show that, through employing the phase-locking technique, Surging Induced Periodic Coherent Structures (SIPCS) can be identified in the wake of all the surging cases studied, irrespective of the inflow conditions and the surging settings. Additionally, the findings show that the faster wake recovery observed in the surging-laminar cases is not caused by facilitating instability-induced faster wake breakdown, a previously accepted hypothesis. Instead, it is the enhanced advection process resulting from the induction fi

Author

Li, YuanTso; Yu, Wei; Sarlak, Hamid

Published

2023

Language

EN