Validation of the actuator disc and actuator line techniques for yawed rotor flows using the New MEXICO experimental data

Experimental data acquired in the New MEXICO experiment on a yawed 4.5m diameter rotor model turbine are used here to validate the actuator line (AL) and actuator disc (AD) models implemented in the Large Eddy Simulation code EllipSys3D in terms of loading and velocity field. Even without modelling...

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Bibliographic Details
Main Authors: Breton, S.-P., Shen, W.Z., Ivanell, S.
Format: Conference Proceeding
Language:English
Subjects:
Actuators
Aerodynamics
Blade tips
Data acquisition
Fluid flow
Large eddy simulation
Physics
Rotors
Turbines
Velocity distribution
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Summary:Experimental data acquired in the New MEXICO experiment on a yawed 4.5m diameter rotor model turbine are used here to validate the actuator line (AL) and actuator disc (AD) models implemented in the Large Eddy Simulation code EllipSys3D in terms of loading and velocity field. Even without modelling the geometry of the hub and nacelle, the AL and AD models produce similar results that are generally in good agreement with the experimental data under the various configurations considered. As expected, the AL model does better at capturing the induction effects from the individual blade tip vortices, while the AD model can reproduce the averaged features of the flow. The importance of using high quality airfoil data (including 3D corrections) as well as a fine grid resolution is highlighted by the results obtained. Overall, it is found that both models can satisfactorily predict the 3D velocity field and blade loading of the New MEXICO rotor under yawed inflow.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/854/1/012005