Imperial College London
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DrAndrewWynn

Faculty of Engineering, Department of Aeronautics

Reader in Control and Optimization
 
 
 
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Contact

 

+44 (0)20 7594 5047a.wynn Website

 
 
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Location

 

340City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Muñoz-Simón:2020:4/042017,
author = {Muñoz-Simón, A and Palacios, R and Wynn, A},
doi = {4/042017},
pages = {1--11},
publisher = {IOP Publishing},
title = {Benchmarking different fidelities in wind turbine aerodynamics under yaw},
url = {http://dx.doi.org/10.1088/1742-6596/1618/4/042017},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - This paper analyses the aerodynamics of wind turbines under yaw with different modelling fidelities (BEM, BEM with skewed wake model, UVLM and LES-AL). First of all, models are compared in a zero-yaw case to demonstrate their accuracy in prediction of out-of-plane loads and the discrepancy of UVLM in the in-plane loads due to the lack of viscous drag. Secondly, the yaw aerodynamics are described through the advancing/retreating and skewed wake effects, which are appropriately captured by UVLM and LES-AL and lead to an incorrect prediction of the location of maximum and minimum loading along a revolution by BEM. Further, when a skew-wake model is included in BEM, it predicts the correct locations but exhibits overly large loading variations. These predictions are consistent for all yaw angles studied (γ = 10° − 30°). All solvers predict similar decrease of root-bending moments, rotor power and thrust coefficients up to a yaw angle of 10°. However, at larger yaw angles, BEM overpredicts this decrease of coefficients with the yaw angle due to the unsuccessful performance of yaw corrections as opposed to UVLM that inherently accounts for three-dimensional effects. This study demonstrates the need to use computational models that can account for three-dimensional effects in the computation of aerodynamic loads for yaw angles above 10°.
AU  - Muñoz-Simón,A
AU  - Palacios,R
AU  - Wynn,A
DO  - 4/042017
EP  - 11
PB  - IOP Publishing
PY  - 2020///
SN  - 1742-6588
SP  - 1
TI  - Benchmarking different fidelities in wind turbine aerodynamics under yaw
UR  - http://dx.doi.org/10.1088/1742-6596/1618/4/042017
UR  - https://iopscience.iop.org/article/10.1088/1742-6596/1618/4/042017
UR  - http://hdl.handle.net/10044/1/88366
ER  -
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