International Journal of Scientific & Technology Research

Home About Us Scope Editorial Board Blog/Latest News Contact Us
10th percentile
Powered by  Scopus
Scopus coverage:
Nov 2018 to May 2020


IJSTR >> Volume 9 - Issue 10, October 2020 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

The Effects Of Aerofoil Profile Modification On A Vertical Axis Wind Turbine

[Full Text]



Amit Kumar Thakur, Ajay Kumar Kaviti, Jayashri N Nair



NACA-0015; VAWT; Gurney flap; Dimple; Optimization.



This study focuses on optimizing the NACA-0015 aerofoil that would be easily used in wind turbines on a vertical axis. The profile changes considered are the amalgam of both the inward dimple and the Gurney flap on the NACA-0015's higher pressure surface. For optimization, a total of seven forms of modifications were considered. Data generated from the aerofoil profile analysis of computational fluid dynamics are used for optimization. To ensure that the optimization is decisive, CFD simulations are validated against existing experimental results.



[1]. McLaren K. A numerical and experimental study of unsteady loading of high solidity vertical axis wind turbines. Ph. D. Mechanical Engineering @ McMaster University; 2011.
[2]. Shukla V, Kaviti AK. A different analysis of wind Turbine Blades: A review. Int J Sci Res & Dev 2015; 3(9): 321-326.
[3]. Sheldahl RE, Klimas PC. Aerodynamic characteristics of seven symmetrical airfoil sections through a 180-degree angle of attack for use in the aerodynamic analysis of vertical axis wind turbines; 1981.
[4]. Gharali K, Johnson DA. Numerical modeling of an S809 airfoil under the dynamic stall, erosion, and high reduced frequencies. Appl Energy 2012; 93:45-52.
[5]. Ahmadi SA, Sharif S, Jamshidi R. A numerical investigation on the dynamic stall of a wind turbine section using different turbulent models. 2009.p. 290-6.
[6]. Liebeck R. Design of subsonic airfoils for high lift; J Aircraft 1978; 15:547-61.
[7]. Neuhart D, Pendergraft O. A water tunnel study of Gurney flaps (NASA TM 4071); 1988.
[8]. Myose R, Heron I, Papadakis M. The effect of Gurney flaps on a NACA0011airfoil; AIAA Pap 1996; 59:15-8.
[9]. Giguere P, Lemay J, Dumas G. Gurney flap effects and scaling for low-speed airfoils. AIAA Pap 1995; 95:1881.
[10]. Katz J, Largman R. Effect of 90-degree flap on the aerodynamics of a two-element airfoil; J Fluids Eng 1989; 111(1):93-4.
[11]. Katz J, Dykstra L. Study of an open-wheel racing-car's rear-wing aerodynamics; SAE Technical paper; 1989. No. 890600.
[12]. Srivastav D, Ponnani K. Surface modifications for improved maneuverability and performance of an aircraft. In: ASME 2011 international mechanical engineering congress & exposition (IMECE-2011); 2011.
[13]. Shukla V, Kaviti AK. Performance evaluation of profile modifications on straight-bladed vertical axis wind turbine by energy and Spalart Allmaras models. Energy (accepted) DOI 10.1016/j.energy.2017.03.071