Journal article
A. Meana-Fernández, J. F. Fernández Oro, K. A. Argüelles Díaz, S. Velarde-Suárez
Energies, vol. 12(3), 2019, pp. 488-1-16
Energies, vol. 12(3), 2019, pp. 488-1-16
DOI:
10.3390/en12030488
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APA
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Meana-Fernández, A., Oro, J. F. F., Díaz, K. A. A., & Velarde-Suárez, S. (2019). Turbulence-Model Comparison for Aerodynamic-Performance Prediction of a Typical Vertical-Axis Wind-Turbine Airfoil. Energies, 12(3), 488–481-16. https://doi.org/10.3390/en12030488
Chicago/Turabian
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Meana-Fernández, A., J. F. Fernández Oro, K. A. Argüelles Díaz, and S. Velarde-Suárez. “Turbulence-Model Comparison for Aerodynamic-Performance Prediction of a Typical Vertical-Axis Wind-Turbine Airfoil.” Energies 12, no. 3 (2019): 488–1-16.
MLA
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Meana-Fernández, A., et al. “Turbulence-Model Comparison for Aerodynamic-Performance Prediction of a Typical Vertical-Axis Wind-Turbine Airfoil.” Energies, vol. 12, no. 3, 2019, pp. 488–81-16, doi:10.3390/en12030488.
BibTeX Click to copy
@article{a2019a,
title = {Turbulence-Model Comparison for Aerodynamic-Performance Prediction of a Typical Vertical-Axis Wind-Turbine Airfoil},
year = {2019},
issue = {3},
journal = {Energies},
pages = {488-1-16},
volume = {12},
doi = {10.3390/en12030488},
author = {Meana-Fernández, A. and Oro, J. F. Fernández and Díaz, K. A. Argüelles and Velarde-Suárez, S.}
}
Abstract
In this work, different turbulence models were applied to predict the performance of a DU-06-W-200 airfoil, a typical choice for vertical-axis wind turbines (VAWT). A compromise between simulation time and results was sought, focusing on the prediction of aerodynamic forces and the developed flow field. Reynolds-averaged Navier–Stokes equation (U-RANS) models and Scale-Resolving Simulations (SRS), such as Scale-Adaptive Simulation (SAS) and Detached Eddy Simulation (DES), were tested, with k − ω -based turbulence models providing the most accurate predictions of aerodynamic forces. A deeper study of three representative angles of attack (5 ° , 15 ° , and 25 ° ) showed that U-RANS models accurately predict aerodynamic forces with low computational costs. SRS modeling generates more realistic flow patterns: roll-up vortices, vortex packets, and stall cells have been identified, providing a richer unsteady flow-field description. The power spectrum density of velocity at 15 ° has confirmed a broadband spectrum in DES simulations, with a small peak at a Strouhal number of 0.486. Finally, indications regarding the selection of the turbulence model depending on the desired outcome (aerodynamic forces, airfoil flow field, or VAWT simulation) are provided, tending toward U-RANS models for the prediction of aerodynamic forces, and SRS models for flow-field study.
Keywords
wind-turbine airfoil; computational fluid dynamics; turbulence-model comparison; airfoil-performance prediction
