Influence of Rigid Body Motions on Rotor Induced Velocities and Aerodynamic Loads of a Floating Horizontal Axis Wind Turbine

This paper discusses the influence of rigid body motions on rotor induced velocities and aerodynamic loads of a floating horizontal axis wind turbine. Analyses are performed with a simplified free wake vortex model specifically aimed at capturing the unsteady and non-uniform inflow typically experie...

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Bibliographic Details
Published in:Volume 9B: Ocean Renewable Energy
Main Authors: de Vaal, Jacobus B., Hansen, Martin Otto Laver, Moan, Torgeir
Format: Article in Journal/Newspaper
Language:English
Published: American Society of Mechanical Engineers 2014
Subjects:
Arctic
Online Access:https://orbit.dtu.dk/en/publications/824b8acf-a0d0-415a-9c9a-5e6f7df102f1
https://doi.org/10.1115/OMAE2014-24227
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Summary:This paper discusses the influence of rigid body motions on rotor induced velocities and aerodynamic loads of a floating horizontal axis wind turbine. Analyses are performed with a simplified free wake vortex model specifically aimed at capturing the unsteady and non-uniform inflow typically experienced by a floating wind turbine. After discussing the simplified model in detail, comparisons are made to a state of the art free wake vortex code, using test cases with prescribed platform motion. It is found that the simplified model compares favourably with a more advanced numerical model, and captures the essential influences of rigid body motions on the rotor loads, induced velocities and wake influence.

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