Numerical Study of Effect of Blade Twist Modifications on the Aerodynamic Performance of Wind Turbine

*Wiroj Beabpimai -  School of mechanical engineering, Institute of engineering, Suranaree University of Technology, Nakhonratchasima 30000, Thailand, Thailand
Tawit Chitsomboon -  Suranaree University of Technology, School of Mechanical Engineering, Nakhon Ratchasima, Thailand, Thailand
Received: 29 Mar 2019; Revised: 17 Aug 2019; Accepted: 19 Aug 2019; Published: 27 Oct 2019; Available online: 30 Oct 2019.
Open Access Copyright (c) 2019 International Journal of Renewable Energy Development
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Section: Original Research Article
Language: EN
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In Vol 8, No 3 (2019): October 2019
Statistics: 56 37
Abstract
This paper aims to investigate aerodynamic performance of a wind turbine blade with twist modifications using computational fluid dynamics (CFD). The phenomenon of 3D stall-delay effect in relation to blade twist is the key feature to be investigated in order to improve efficiency of a wind turbine. The NREL (National Renewable Energy Laboratory) Phase VI wind turbine rotor was used for validation and as the baseline rotor. The baseline blade geometry was modified by increasing/decreasing the twist angles in the inboard, mid-board and outboard regions of the blade in the form of a symmetrical curve with maximum twist angle of 3°. The steady incompressible Reynolds-averaged Navier-Stokes (RANS) equations with the k-ω Shear Stress Transport (SST) turbulence closure model were used for the calculations at wind speeds ranging from 5-20 m/s. The computational results for the baseline Phase VI rotor were validated against experimental data and a good agreement was found. The computational results for the modified blades were compared against those of the baseline blade. It was found that increase of annual energy production of up to 5.1% could be achieved by this modification technique.  ©2019. CBIORE-IJRED. All rights reserved
Keywords
CFD; Wind turbine aerodynamics; Blade twist; efficiency of wind turbine

Article Metrics:

  1. Ahmadi MH, Ghazvini M, Sadeghzadeh M, et al. (2018) Solar power technology for electricity generation: a critical review. Energy Sci Eng. 6(5), 340‐361.
  2. Ahmadi MH, Alhuyi Nazari M, Ghasempour R, Pourfayaz F, Rahimzadeh M, Ming T. (2018) A review on solar-assisted gas turbines. Energy Sci Eng. 6(6):658–74.
  3. Ahmadi MH, Ramezanizadeh M, Nazari MA, Lorenzini G, Kumar R, Jilte R. (2018). Applications of nanofluids in geothermal: A review. Mathematical Modelling of Engineering Problems. 5(4), 281-5.
  4. ANSYS FLUENT 12.1 (2009) User’s Guide, Fluent Inc.
  5. ANSYS ICEM CFD 12.1 (2009) User Manual, Fluent Inc.
  6. Chow, R. & van Dam, C.P. (2012) Computational investigations of blunt trailing-edge and twist modifications to the inboard region of the NREL 5 MW rotor. Wind Energy, 16, 445–458.
  7. Duque, E.P.N., Burklund, M. D., & Johnson, W. (2003) Navier-stokes and comprehensive analysis performance predictions of the NREL phase VI experiment. Journal of Solar Energy Engineering, 125, 457-467
  8. Giguere, P. & Selig, M. (1999) Design of a tapered and twisted blade for the NREL combined experiment rotor. NREL/SR. 500-26173.
  9. Guntur, S. (2013) A Detailed Study of the Rotational Augmentation and Dynamic Stall Phenomena for Wind Turbines. PhD thesis, DTU Vindenergi.
  10. Hand, M.M., Simms, D.A., Fingersh, L.J., Jager, D.W., Cotrell, J.R., Schreck, S. & Larwood, S.M. (2001) Unsteady aerodynamics experiment phase VI: wind tunnel test configurations and available data campaigns. NREL/TP-500-29955.
  11. Hansen, O.L., Sorensen, J.N., Voutsinas, S., Sorensen, N., & Madsen, H.Aa. (2006) State of the art in wind turbine aerodynamics and aeroelasticity. Prog. Aerosp. Sci. 42, 285–330.
  12. Himmelskamp H. (1947) Profile investigations on a rotating airscrew. Reports and translations, MAP Völenrode: Göttingen, Germany.
  13. Hsu, M.C., Akkerman, I., & Bazilevs, Y. (2013) Finite element simulation of wind turbine aerodynamics: validation study using NREL Phase VI experiment. Wind Energy, 17(3), 461–481.
  14. Johansen, J., Sørensen, N. N., Michelsen, J. A., & Schreck, S. (2002) Detached-Eddy Simulation of Flow around the NREL Phase-VI Rotor. Wind Energy, Vol. 5, No. 2-3, 185-197
  15. Li, Y., Paik, K.J., Xing, T. & Carrica, P.M. (2012) Dynamic overset CFD simulations of wind turbine aerodynamics. Renewable Energy, 37,285–298.
  16. Menter, F.R. Kuntz, M. & Langtry, R. (2003) Ten Years of Industrial Experience with the SST Turbulence Model. Heat and Mass Transfer, 4, 625–632.
  17. Ramezanizadeh M, Nazari MA, Ahmadi MH, Lorenzini G, Kumar R, Jilte R. (2018). A review on the solar applications of thermosyphons. Mathematical Modelling of Engineering Problems. 5(4): 275-280.
  18. Schreck, S., Robinson, M. (2002) Rotational augmentation of horizontal axis wind turbine blade aerodynamic response. Wind Energy, 5, 133–150.
  19. Simms, D., Schreck, S., Hand, M., Fingersch, L.J. (2001) NREL Unsteady Aerodynamics Experiment in the NASA-Ames Wind Tunnel: A Comparison of Predictions to Measurements. Technical Report; National Renewable Energy Laboratory (NREL): Golden, CO, USA.
  20. Sørensen, N.N., Michelsen, J.A., & Schreck, S. (2002) Navier-Stokes Prediction of the NREL Phase VI Rotor in the NASA Ames 80 ft x 120 ft Wind Tunnel. Wind Energy, 5,151-169.
  21. Thumthae, C., & Chitsomboon, T., (2007) Appropriate Domain Size for Numerical Simulation of Horizontal-Axis Wind Turbines. The 21 st Conference of Mechanical Engineering Network of Thailand, Chonburi.
  22. Wood, DH. (1991). A three-dimensional analysis of stall-delay on a horizontal-axis wind turbine. Journal of Wind Engineering and Industrial Aerodynamics, 37,1-14.

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