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Study and Analytical Work Analysis on Aerodynamic Investigation of Flow Field over Airfoil in Subsonic Wind Tunnel

Kushagra Pandey, Amit Agrawal

Abstract


Aerodynamic analysis of a low Reynolds number airfoil is critical for numerous applications in the fields of aerodynamics and aeronautics, both basic and industrial. In a subsonic wind tunnel, an experimental evaluation was conducted over a symmetrical airfoil NACA 0014. The studies on the airfoil were carried out in an open circuit, suction-type subsonic wind tunnel. Because Reynolds number and angle of attack are two critical parameters in the performance of an airfoil, all experiments were carried out on an airfoil with the angle of attack varied at four different Reynolds numbers. The angle of attack and Reynolds number were adjusted from m 00 to 180 with 30 steps and 1.49x105 to 2.98x105 respectively. In this experimental investigation, the pressure distributions over the bottom and top surfaces of the airfoil were acquired, as well as the coefficients of lift and drag. At high Reynolds numbers, maximum coefficients of lift and drag of 1.53 and 0.18 respectively are attained. The stall condition was virtually achieved at a 150-160 angle of attack.


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Juanmian Lei, Feng Guo & Can Huang (2013). Numerical study of separation on the trailing edge of a symmetrical airfoil at low Reynolds number. Chinese Journal of Aeronautics, 26(4), pp. 918-925, DOI: https://doi.org/10.1016/j.cja.2013.06.005.

Anderson John D. (2001). Fundamentals of Aerodynamics, McGraw-Hill, second Edition, Available at: http://ftp.demec.ufpr.br/disciplinas/TM045/FUNDAMENTALS_OF_AERODYNAMICS.PDF.

Kumar D.S. (2014), Fluid Mechanics and Fluid Engineering, Katson Books, Chapter 11, Delhi, pp. 546-588

Hu Hui &Yang Zifeng (2008). An experimental study of the laminar flow separation on a low Reynolds number airfoil. Journal of Fluids Engineering, 130(5), 11 pages, DOI: https://doi.org/10.1115/1.2907416.

Selig Michael S, Guglielmo James J., Broeren Andy P. & Giguere Philippe (1996). Experiments on airfoils at low Reynolds number. AIAA/34th Aerospace Sciences Meeting and Exhibit, USA. DOI: https://doi.org/10.2514/6.1996-62.

Cengel Yunus A. & Cimbala John M.(2010), Fluid Mechanics, TMH, Delhi, pp. 583-621, Chap. 11. Third Edition, Available at: http://bayanbox.ir/view/8663792249632045937/Fluid-Cengel-3ed.pdf.

Yemenici Onur (2013). Experimental investigation of the flow field over NACA 0012 airfoil. International Journal of Sciences, 2, pp. 08-21, Available at: https://www.ijsciences.com/pub/article/242.

Şahin İzzet & Acir Adem (2015). Numerical and experimental investigation of lift and drag performances of NACA 0015 wind turbine airfoil. International journal of materials, mechanics and manufacturing, 3(1), pp. 22-25, Available at: http://www.ijmmm.org/vol3/159-TT3010.pdf.

Yemenici Onur (2014). An experimental study on the aerodynamics of a symmetrical airfoil with influence of Reynolds number and attack angle. 2nd International Conference on Research in Science, Engineering and Technology (ICRSET’2014), Dubai (UAE), Available at: http://iieng.org/images/proceedings_pdf/6464E0314562.pdf.

Morshed Munzarin, Sayeed Shehab Bin, Mamum Syed Abdullah Al & Alam GM Jahagir (2014). Investigation of drag analysis of four different profiles tested at subsonic wind tunnel. Journal of Modern Science and Technology, 2(2), pp. 113-126, Available at: https://www.academia.edu/25732764/Investigation_of_Drag_Analysis_of_Four_Different_Profiles_Tested_at_Subsonic_Wind_Tunnel.

Islam Md. Rasedul, Hossain Md. Amzad, Udding Md. Nizam & Mashud Mohammad (2015). Experimental evaluation of aerodynamics characteristics of a 50 baseline airfoil. American Journal of Engineering Research (AJER), 4(1), pp. 91-96, Available at: http://www.ajer.org/papers/v4(01)/M0401091096.pdf.

Shah Ishan M., Thakkar, S.A., Thakkar K.H., Patel Bhavesh A. (2013). Performance analysis on airfoil model in wind tunnel testing machine (wttm). International Journal of Engineering Research and Applications, 3(4), pp. 2094- 2103, Available at: https://www.ijera.com/papers/Vol3_issue4/LP3420942103.pdf.

UDDIN Md. Nizam, Hossain Md. Amzad, Islam Md. Rasedul, Hossain Md. Shabbir & Mashud Mohammad (2015). Experimental investigation of effect of multiple wing. International Journal of Scientific and Research Publications, 5(1), Available at: http://dx.doi.org/10.13140/RG.2.2.22995.84007/1.

Rathod Narayan U (2014). Aerodynamic analysis of a symmetric aerofoil. International Journal of Engineering Development and Research, 2(4), pp. 3971- 3981, Available at: https://www.ijedr.org/papers/IJEDR1404095.pdf.

Gerakopulos Ryan, Boutilier Michael S H & Yarusevych Serhiy (2010). Aerodynamic characterization of a NACA 0018 airfoil at low Reynolds numbers. 40th Fluid Dynamics Conference and Exhibit, Chicago (U.S.A.). DOI: http://dx.doi.org/10.2514/6.2010-4629.

Ahmed M.R. & Sharma S.D. (2005). An investigation on the aerodynamics of a symmetrical airfoil in ground effect. Experimental and Fluid Science, 29(6), pp. 633-647, DOI: https://doi.org/10.1016/j.expthermflusci.2004.09.001.


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