Effect of Gurney Flaps on the Aerodynamic Characteristics of NACA 0010 Cascades

T. Nilavarasan 1 , Ganapati. N. Joshi 1 , and Sunil Chandel 2
  • 1 Department of Aerospace Engineering, Defence Insititute of Advanced Technology, Pune, India
  • 2 Department of Mechanical Engineering, Defence Insititute of Advanced Technology, Pune, India
T. Nilavarasan
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  • Department of Aerospace Engineering, Defence Insititute of Advanced Technology, Pune, India
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, Ganapati. N. Joshi and Sunil Chandel

Abstract

Two dimensional computations were conducted to investigate the performance of NACA 0010 cascades with Gurney Flaps. The cascades with three different stagger angles (βB) viz. 45°, 90° and 135° were studied for the aerodynamic performance characteristics of the blades with and without Gurney Flaps and the results were compared. The Gurney Flap’s length is 2 % of the chord length and has a 45° inclination with respect to the chord line. A significant lift augmentation is observed in all the three blade angle configurations due to the Gurney Flap. In terms of aerodynamic efficiency, it was observed that the presence of Gurney Flap was detrimental when βB = 45°, while the same was highly advantageous when βB = 135°. The streamline visualizations indicated the existence of counter rotating vortex pairs behind the Gurney Flap and that their rate of decay with respect to the Angle of attack was affected by the stagger angle at which the blades were arranged.

  • 1.

    Bushnell DM, Hefner JN. Viscous drag reduction in boundary layers. Progress in Aeronautics and Astronautics, vol. 123, Washington, D.C.: AIAA, 1990.

  • 2.

    Packard NO. Active flow separation control of a laminar airfoil at low reynolds number. Ph.D Thesis. USA:The Ohio State University, 2012.

  • 3.

    Kim K, Sung HJ. Effects of periodic blowing from spanwise slot on a turbulent boundary layer. Aiaa J. 2003;41:1916–24.

    • Crossref
    • Export Citation
  • 4.

    Park J, Choi H. Effects of uniform blowing or suction from a spanwise slot on a turbulent boundary layer flow. Phys Fluids. 1999;11:3095–105.

    • Crossref
    • Export Citation
  • 5.

    Fric TF, Roshko A. Vortical structures in the wake of a transverse jet. J Fluid Mech. 1994;279:1–47.

    • Crossref
    • Export Citation
  • 6.

    Glezer A, Amitay M. Synthetic jets. Annu Rev Fluid Mech. 2002;34:503–29.

    • Crossref
    • Export Citation
  • 7.

    Nosenchuck DM, Brown GL, Culver HC, Eng TI, Huang IS. Spatial and temporal characteristics of boundary layers controlled with the Lorentz force. Proceedings of the Twelfth Australian Fluid Mechanics Conference, 1995:93–6.

  • 8.

    Lin JC. Control of turbulent boundary-layer separation using micro-vortex generators. AIAA Paper, 1999:99–3404.

  • 9.

    Kerho M, Hutcherson S, Blackwelder RF, Liebeck RH. Vortex generators used to control laminar separation bubbles. J Aircr. 1993;30:315–19.

    • Crossref
    • Export Citation
  • 10.

    Hergt A, Meyer R, Engel K. Effects of vortex generator application on the performance of a compressor cascade. J Turbomach. 2013;135:01–10.

  • 11.

    Diaa AM, El-Dosoky MF, Ahmed MA. Enhancing the performance of an axial compressor cascade using vortex generators. J Aeronaut Aerosp Eng. 2016;5:01–09.

  • 12.

    Culley DE, Bright MM, Prahst PS, Strazisar AJ. Active flow separation control of a stator vane using surface injection in a multistage compressor experiment. NASA Glenn Research Center TM, 2003:2003–212356.

  • 13.

    Evans SW, Hodson HP, Hynes TP, Wakelam CT, Hiller SJ. Controlling separation on a simulated compressor blade using vortex generator jets. 4th Flow Control Conference, AIAA Paper, 2008:2008–4317.

  • 14.

    Hansen L, Bons JP. Flow measurements of vortex generator jets in separating boundary layer. J Propul Power. 2006;22:558–66.

    • Crossref
    • Export Citation
  • 15.

    Volino RJ. Separation control on low-pressure turbine airfoils using synthetic vortex generator jets. J Turbomach. 2003;125:765–77.

    • Crossref
    • Export Citation
  • 16.

    Evans S, Hodson H, Hynes T, Wakelam C. Flow control in compressor cascade at high incidence. J Propul Power. 2010;26:828–36.

    • Crossref
    • Export Citation
  • 17.

    Reijnen DP. Experimental study of boundary layer suction in a transonic compressor. Ph.D. Thesis, Massachusetts Inst. of Technology, Cambridge, Massachusetts, USA, 1997.

  • 18.

    Liebeck R. Design of subsonic airfoils. J Aircr. 1978;15:547–61.

  • 19.

    Jefferey D, Zhang X. Aerodynamics of Gurney Flaps on a single-element high-lift wing. J Aircr. 2000;37:295–301.

    • Crossref
    • Export Citation
  • 20.

    Neuhart DH, Pendergraft OC. A water tunnel study of Gurney Flaps. NASA Tech Memorandum. 1988;4071:1–20.

  • 21.

    Neung-Soo Y. Effect of the Gurney Flap on a 23012 airfoil. KSME Int J. 2000;14:1013–19.

    • Crossref
    • Export Citation
  • 22.

    Nilavarasan T, Joshi GN, Chandel S. Aerodynamic performance characteristics of NACA 0010 cascade with Gurney Flaps. Int J Turbo Jet Engines. (Ahead of Print). 2018.

  • 23.

    Giguere P, Dumas G, Lemay J. Gurney Flap scaling for optimum lift-to-drag ratio. Aiaa J. 1997;35:1888–90.

    • Crossref
    • Export Citation
  • 24.

    Brown L, Filippone A. Aerofoil at low speeds with Gurney Flaps. Aeronaut J. 2003;107:539–46.

  • 25.

    Myose RY, Lietsche JC, Scholz D, Zingel H, Hayashibara S, Heron I. Flow visualization study on the effect of a Gurney Flap in a low reynolds number compressor cascade. AIAA Paper, 2006:2006–7809.

  • 26.

    Spalart PR, Allmaras SR. A one-equation turbulence model for aerodynamic flows. AIAA Paper, 1992:92–0439.

  • 27.

    Schlichting H. Cascade flow problems. AGARD Report, No. 93, 1957.

  • 28.

    Norton FH. The effect of staggering a biplane. NACA Technical Report No. 70, 1921.

  • 29.

    Husain Z, Abdullah MZ, Yap TC. Two dimensional analysis of tandem/staggered airfoils using computational fluid dynamics. Int J Mech Eng Educ. 2005;33:195–207.

    • Crossref
    • Export Citation
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