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ISSN: 2375-3897

American Journal of Energy and Power Engineering

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CFD Study of Flow Field Velocities and 3D Effects over the MEXICO Wind Turbine Model

American Journal of Energy and Power Engineering
Vol.4 , No. 6, Publication Date: Dec. 13, 2017, Page: 89-97

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Authors

[1]	Borja Plaza Gallardo, Ingenieria de Sistemas para la Defensa de España S. A. (ISDEFE), Madrid, Spain.
[2]	Rafael Bardera Mora, National Institute of Aerospace Technology (INTA), Madrid, Spain.
[3]	Sergio Visiedo Martínez, Ingenieria de Sistemas para la Defensa de España S. A. (ISDEFE), Madrid, Spain.

Abstract

The deep understanding about wake field and 3D effects of wind turbines are still a challenge, due to the complexity of the three-dimensional flow which blades rotation produces. In this work an aerodynamic analysis about wind turbine model MEXICO is realized, firstly of axial distribution of velocities in several regions inside the streamtube and then some estimations of 3D effects, either lift coefficient augmentation or stall delay phenomenon. CFD-RANS simulations have been carried out at three different wind speeds, and results are compared to experimental data of the MEXICO project, from wind tunnel tests. Results show that axial and radial inductions are greater for outer sections and lower as wind speed increases, providing different wake configurations. As for the 3D effects, it is found that rotational augmentation appears firstly for inner part of the blade and they advance progressively towards span-wise direction as wind velocity grows. For inner section, at high wind speed, lift coefficient increase reaches to values of 50% over the corresponding 2D polar curve.

Keywords

MEXICO, Mexnext, Aerodynamics, CFD, Axial Velocity, Radial Velocity, 3D Effects

Reference

[01]	K. Boorsma and J. G. Schepers, Description of experimental setup MEXICO measurements, ECN-X-11-120, Energy research Centre of the Netherlands (ECN), March 2009.
[02]	J. G. Schepers, K. Boorsma, T. Chon, Niels Sørensen, Final report of IEA Task 29, Mexnext (Phase 1): Analysis of Mexico wind tunnel measurements, ECN-E-12-004, Energy research Centre of the Netherlands (ECN), February 2012.
[03]	Jasak H, Error analysis and estimation for the finite volume method with applications to fluid flows, PhD thesis, Imperial College of Science, Technology and Medicine, 1996.
[04]	Raffel, M., Willert, C. E., Wereley, S. T. & Kompenhans, J., “Particle Image Velocimetry“ –A Practical Guide-, Second Edition, Springer-Verlag Berlin, 2007.
[05]	Srinivas Guntur and Nierls N. Sørensen, An evaluation of several methods of determining the local angle of attack on wind turbine blades, Proceedings of Science of Making Torque from Wind, Oldenburg, Germany, October 2012.
[06]	Horia Dumitrescu, Vladimir Cardos, Florin Frunzulica, Alexandru Dumitrache, Determination of angle of attack for rotating blades, POLITEHNICA University of Bucharest, Bucharest, Romania, 2012.
[07]	Daniel Micallef, Gerard van Bussel, Carlos Simao Ferreira, and Tonio Sant, An investigation of radial velocities for a horizontal axis wind turbine in axial and yawed flows, Wiley Online Library, 2012.
[08]	Yuwei Li, Kwang-Jun Paik, Tao Xing, and Pablo M. Carrica, Dynamic overset CFD simulations of wind turbine aerodynamics, Renewable Energy 37: 285-298, 2012.
[09]	J. Johansen, N. N. Sørensen, and J. A Michelsen ans S. Schreck, Detached-eddy simulation of flow around the NREL Phase VI blade, Volume 5, Issue 2-3, pages 185–197 April-September 2002, July 2002.
[10]	H Snel, J G Schepers, and B Montgomerie, The MEXICO project (Model Experiments in Controlled Conditions): The database and first results of data processing and interpretation, The Science of Making Torque from Wind, Journal of Physics: Conference Series 75, IOP Publishing, 2007.
[11]	J. G. Schepers, K. Boorsma, T. Cho, S. Gomez-Iradi, P. Schaffarczyk, A. Jeromin, W. Z. Shen et al., Review of computational fluid dynamics for wind turbine wake aerodynamics, Energy research Centre of the Netherlands (ECN), February 2012.
[12]	J. G. Schepers, K. Boorsma, H. Snel, IEA Task 29 Mexnext: Analysis of wind tunnel measurements from the EU project Mexico, The Science of Making Torque from Wind.
[13]	Hsiao Mun Lee and Leok Poh Chua, Investigation of the stall delay of a 5kW horizontal axis wind turbine using numerical method, International Conference on Renewable Energies and Power Quality (ICREPQ 12), Santiago de Compostela, Spain, March 2012.
[14]	Tony Burton, Nick Jenkins, David Sharpe, and Ervin Bossanyi, Wind Energy Handbook, John Wiley & Sons, Ltd. ISBN: 978-0-470-69975-1, West Sussex, PO19 8SQ, United Kingdom, 2011.
[15]	Srinivas Guntur and Niels N. Sørensen, A study on rotational augmentation using CFD analysis of flow in the inboard region of the MEXICO rotor blades, Wiley Online Library, January 2014.
[16]	Mukesh M. Yelmule and EswaraRao Anjuri VSJ, CFD predictions of NREL Phase VI Rotor Experiments in NASA/AMESWind tunnel, INTERNATIONAL JOURNAL of RENEWABLE ENERGY RESEARCH, June 2013.
[17]	Akay B, Ragni D, Simo Ferreira C, and van Bussel G, Experimental investigation of the root flow in a horizontal axis wind turbine, Wind Energy. DOI: 10.1002/we.1620, 2013.