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

@article{Muñoz-Simón:2022:10.1002/we.2675,
author = {Muñoz-Simón, A and Wynn, A and Palacios, R},
doi = {10.1002/we.2675},
journal = {Wind Energy},
pages = {333--353},
title = {Some modelling improvements for prediction of wind turbine rotor loads in turbulent wind},
url = {http://dx.doi.org/10.1002/we.2675},
volume = {25},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper investigates the accuracy of three aerodynamic models to compute loads on wind turbine rotors under turbulent inflow: Blade Element Momentum (BEM); Unsteady Vortex LatticeMethod (UVLM) and Large Eddy Simulation with Actuator Line (LES-AL). Turbulent inflow conditions are numerically generated with a new approach that combines control of turbulence andrealistic velocity spectrum by using Mann boxes and LES simulations, respectively. Several deficiencies of the tested models are found and overcome through proposed improvements. First,the BEM assumption of independent radial sections does not hold in turbulent cases with longblades. Thus, a spatial filter to account for the interaction of radial sections in BEM is designedthrough the analysis of these interactions with UVLM. Second, the absence of viscous drag inUVLM is observed to lead to a very high rotor power coefficient, and it is shown that this canbe mitigated by including drag in UVLM with a BEM-like-approach through look-up tables. Third,the free wake model in UVLM, required to accurately capture rotor thrust, significantly increasescomputational cost. For this reason, a new wake discretisation scheme for the wake convectionequation in UVLM is proposed, in which a coarse discretisation is employed far from the solidsurfaces, which significantly reduces the computational time. Finally, these improvements andthe performance of the three fidelities are analysed in a reference 10 MW wind turbine rotordemonstrating, in general, good agreement.
AU  - Muñoz-Simón,A
AU  - Wynn,A
AU  - Palacios,R
DO  - 10.1002/we.2675
EP  - 353
PY  - 2022///
SN  - 1095-4244
SP  - 333
TI  - Some modelling improvements for prediction of wind turbine rotor loads in turbulent wind
T2  - Wind Energy
UR  - http://dx.doi.org/10.1002/we.2675
UR  - https://onlinelibrary.wiley.com/doi/10.1002/we.2675
UR  - http://hdl.handle.net/10044/1/90950
VL  - 25
ER  -
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