International Journal of Energy and Power Engineering

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Effect of Leading Edge Radius and Blending Distance from Leading Edge on the Aerodynamic Performance of Small Wind Turbine Blade Airfoils

Received: 31 August 2015    Accepted: 31 August 2015    Published: 7 September 2015
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Abstract

The aerodynamic performance of a wind turbine depends upon shape of blade profile blade airfoils. Today, small wind turbine industries are extensively focusing on blade performance, reliability, materials and cost. The wind turbine blade designers are required to give emphasis on accurate analysis of flows around the blade and loads on wind turbine blades. Low Reynolds number airfoils suited for small wind turbine applications must be designed to have a high degree of tolerance in avoiding high leading suction peaks and high adverse pressure gradients that lead to flow separation. This paper presents a study to investigate the effect of leading edge radius and leading edge blending on the aerodynamic performance of wind turbine airfoils. In the present work NACA 4412 airfoil is considered as base airfoils. In this work six modified airfoils having different new to the old ratio of leading edge radii are considered for performance analysis. The performance of these six profiles is compared with basic airfoil performance. In this paper, the effect of blending distance from leading edge of airfoil on aerodynamic performance is also determined. Different five blending distances from leading edge are analyzed and compared with basic profile. The performance analysis of airfoils is carried out using Blade Element Momentum. In the present analysis, chord length of airfoils and Reynolds number are kept constant.

DOI 10.11648/j.ijepe.s.2015040501.19
Published in International Journal of Energy and Power Engineering (Volume 4, Issue 5-1, September 2015)

This article belongs to the Special Issue Energy Systems and Developments

Page(s) 54-58
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Airfoil, Aerodynamic Performance, Leading Edge Radius, Leading Edge Blending

References
[1] Mahasidha R. Birajdar, Sandip A. Kale, S. N. Sapali, “Numerical Analysis of New Airfoils for Small Wind Turbine Blade”, Journal of Alternate Energy Sources and Technologies, ISSN: 2230-7982, Volume 6, Issue 1, 2015.
[2] Mahasidha R. Birajdar, Sandip A. Kale, “Comparison of new designed small wind turbine airfoils and blade performance using different techniques”, International Journal of Applied engineering research, ISSN: 0973-4562, Volume 10, No.71, 2015.
[3] Ronit K. Singh, M. Ra.uddinAhmeda, Mohammad AsidZullah, Young-Ho Lee, “Design of a low Reynolds number airfoil for small horizontal axis wind turbines”, Renewable Energy 42 (2012) 66-76.
[4] AgrimSareen, Chinmay A. Sapre and Michael S. Selig, “Effects of leading edge erosion on wind turbine blade performance”, Wind Energ.2014; 17:1531–1542.
[5] C.P. (Case) van Dam, “Blade Aerodynamics - Passive and Active Load Control for Wind Turbine Blades”, University of California, Davis.
[6] Giguere P, Selig MS. “New airfoils for small horizontal axis wind turbines”, Wind Engineering 1998; 120:111.
[7] Jasinski WJ, Noe SC, Selig MS, Bragg MB.Wind turbine performance under icing conditions. ASME Journal of Solar Energy Engineering 1998; 120: 60–65.
[8] Giguère P, Selig MS. Aerodynamic effects of leading-edge tape on airfoils at low Reynolds numbers. Wind Energy 1999; 2: 125–136.
[9] Van Rooij RPJOM, Timmer WA. Roughness sensitivity considerations for thick rotor blade airfoils. AIAA Paper 2003–352, Reno, NV, August 2003.
[10] Fuglsang P, Bak C. Development of the Risk wind turbine airfoils. Wind Energy 2004; 7(2): 145–162.
[11] Giguere P, Selig MS. Low Reynolds number airfoils for small horizontal axis wind turbines. Wind Engineering 1997; 21:367-80.
[12] Miley SJ. A catalog of low Reynolds number airfoil data for wind turbine applications. College Station, Texas: Department of Aerospace Engineering, Texas A&M University; 1982.
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[14] Lissaman PBS. Low-Reynolds-number airfoils. Annual Reviews of Fluid Mechanics 1983; 15:223-39.
[15] L.J.Vermeer et.al, in the paper “Wind turbine wake aerodynamics” Progress in Aerospace Sciences 39 (2003) 467–510.
[16] Lucas I. Lago a, Fernando L. Ponta, Alejandro D. Otero Analysis of alternative adaptive geometrical configurations for the NREL-5 MW wind turbine blade, Renewable Energy 59 (2013) 13-22
[17] Clausen PD, Wood DH. Research and development issues for small wind turbines. Renewable Energy 1999; 16: 922-7.
[18] Peacock AD, Jenkins D, Ahadzi M, Berry, Turan S. Micro wind turbines in the UK domestic sector, energy and buildings.
[19] Wright AK, Wood DH. The starting and low wind speed behavior of a small horizontal axis wind turbine. Journal of Wind Engineering and Industrial Aerodynamics 2004; 92: 1265-79.
[20] Tangler J. L. et al., “Wind Turbine Post-Stall Airfoil Performance Characteristics Guidelines for Blade Element Momentum Methods,” National Renewable Energy Laboratory, Technical Report 2004 NREL/ CP-500-36900.
[21] Habali SM, Saleh IA. Local design, testing and manufacturing of small mixed airfoil wind turbine blades of glass .ber reinforced plastics. Part I: design of the blade and root. Energy Conversion & Management 2000; 41: 249-80.
[22] Peter J. Schubel, Richard J. Crossley in the paper “Wind Turbine Blade Design” Energies, 2012, 5, 3425-3449.
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[24] S A Kale, R N Varma, “Aerodynamic Design of a Horizontal Axis Micro Wind Turbine Blade Using NACA 4412 Profile”, International Journal of Renewable Energy Research, Vol. 4, Issue 1, 69-72 p.
Cite This Article
  • APA Style

    Mahasidha R. Birajdar, Sandip A. Kale. (2015). Effect of Leading Edge Radius and Blending Distance from Leading Edge on the Aerodynamic Performance of Small Wind Turbine Blade Airfoils. International Journal of Energy and Power Engineering, 4(5-1), 54-58. https://doi.org/10.11648/j.ijepe.s.2015040501.19

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    ACS Style

    Mahasidha R. Birajdar; Sandip A. Kale. Effect of Leading Edge Radius and Blending Distance from Leading Edge on the Aerodynamic Performance of Small Wind Turbine Blade Airfoils. Int. J. Energy Power Eng. 2015, 4(5-1), 54-58. doi: 10.11648/j.ijepe.s.2015040501.19

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    AMA Style

    Mahasidha R. Birajdar, Sandip A. Kale. Effect of Leading Edge Radius and Blending Distance from Leading Edge on the Aerodynamic Performance of Small Wind Turbine Blade Airfoils. Int J Energy Power Eng. 2015;4(5-1):54-58. doi: 10.11648/j.ijepe.s.2015040501.19

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  • @article{10.11648/j.ijepe.s.2015040501.19,
      author = {Mahasidha R. Birajdar and Sandip A. Kale},
      title = {Effect of Leading Edge Radius and Blending Distance from Leading Edge on the Aerodynamic Performance of Small Wind Turbine Blade Airfoils},
      journal = {International Journal of Energy and Power Engineering},
      volume = {4},
      number = {5-1},
      pages = {54-58},
      doi = {10.11648/j.ijepe.s.2015040501.19},
      url = {https://doi.org/10.11648/j.ijepe.s.2015040501.19},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepe.s.2015040501.19},
      abstract = {The aerodynamic performance of a wind turbine depends upon shape of blade profile blade airfoils. Today, small wind turbine industries are extensively focusing on blade performance, reliability, materials and cost. The wind turbine blade designers are required to give emphasis on accurate analysis of flows around the blade and loads on wind turbine blades. Low Reynolds number airfoils suited for small wind turbine applications must be designed to have a high degree of tolerance in avoiding high leading suction peaks and high adverse pressure gradients that lead to flow separation. This paper presents a study to investigate the effect of leading edge radius and leading edge blending on the aerodynamic performance of wind turbine airfoils. In the present work NACA 4412 airfoil is considered as base airfoils. In this work six modified airfoils having different new to the old ratio of leading edge radii are considered for performance analysis. The performance of these six profiles is compared with basic airfoil performance. In this paper, the effect of blending distance from leading edge of airfoil on aerodynamic performance is also determined. Different five blending distances from leading edge are analyzed and compared with basic profile. The performance analysis of airfoils is carried out using Blade Element Momentum. In the present analysis, chord length of airfoils and Reynolds number are kept constant.},
     year = {2015}
    }
    

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  • TY  - JOUR
    T1  - Effect of Leading Edge Radius and Blending Distance from Leading Edge on the Aerodynamic Performance of Small Wind Turbine Blade Airfoils
    AU  - Mahasidha R. Birajdar
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    DO  - 10.11648/j.ijepe.s.2015040501.19
    T2  - International Journal of Energy and Power Engineering
    JF  - International Journal of Energy and Power Engineering
    JO  - International Journal of Energy and Power Engineering
    SP  - 54
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    PB  - Science Publishing Group
    SN  - 2326-960X
    UR  - https://doi.org/10.11648/j.ijepe.s.2015040501.19
    AB  - The aerodynamic performance of a wind turbine depends upon shape of blade profile blade airfoils. Today, small wind turbine industries are extensively focusing on blade performance, reliability, materials and cost. The wind turbine blade designers are required to give emphasis on accurate analysis of flows around the blade and loads on wind turbine blades. Low Reynolds number airfoils suited for small wind turbine applications must be designed to have a high degree of tolerance in avoiding high leading suction peaks and high adverse pressure gradients that lead to flow separation. This paper presents a study to investigate the effect of leading edge radius and leading edge blending on the aerodynamic performance of wind turbine airfoils. In the present work NACA 4412 airfoil is considered as base airfoils. In this work six modified airfoils having different new to the old ratio of leading edge radii are considered for performance analysis. The performance of these six profiles is compared with basic airfoil performance. In this paper, the effect of blending distance from leading edge of airfoil on aerodynamic performance is also determined. Different five blending distances from leading edge are analyzed and compared with basic profile. The performance analysis of airfoils is carried out using Blade Element Momentum. In the present analysis, chord length of airfoils and Reynolds number are kept constant.
    VL  - 4
    IS  - 5-1
    ER  - 

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Author Information
  • Mechanical Engineering Department, Trinity College of Engineering and Research, Pune, India

  • Mechanical Engineering Department, Trinity College of Engineering and Research, Pune, India

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