Numerical Analysis of the Aerodynamic Characteristics of NACA4312 Airfoil

Authors

  • Md Rhyhanul Islam Pranto Department of Mechanical Engineering, Khulna University of Engineering & Technology (KUET) Khulna -9203, Bangladesh.
  • Mohammad Ilias Inam Department of Mechanical Engineering, Khulna University of Engineering & Technology (KUET)

DOI:

https://doi.org/10.38032/jea.2020.02.001

Keywords:

Airfoil, CFD, RANS, Lift Coefficient, Drag Coefficient

Abstract

The aim of the work is to investigate the aerodynamic characteristics such as lift coefficient, drag coefficient, pressure distribution over a surface of an airfoil of NACA-4312. A commercial software ANSYS Fluent was used for these numerical simulations to calculate the aerodynamic characteristics of 2-D NACA-4312 airfoil at different angles of attack (α) at fixed Reynolds number (Re), equal to 10*105  . These simulations were solved using two different turbulence models, one was the Standard κ - ε model with enhanced wall treatment and other was the SST κ - ε model. Numerical results demonstrate that both models can produce similar results with little deviations. It was observed that both lift and drag coefficient increase at higher angles of attack, however lift coefficient starts to reduce at α =13° which is known as stalling condition. Numerical results also show that flow separations start at rare edge when the angle of attack is higher than 13° due to the reduction of lift coefficient.   

References

Fearn, R.L., 2008. Airfoil aerodynamics using panel methods. The Mathematica Journal, 10(4), p.15.

Triet, N.M., Viet, N.N. and Thang, P.M., 2015. Aerodynamic analysis of aircraft wing. VNU Journal of Science: Mathematics-Physics, 31(2).

Sumaryada, T., Jaya, A.M. and Kartono, A., 2018. Simulating the Aerodynamics Profiles of NACA 4312 Airfoil in Various Incoming Airspeed and Gurney Flap Angle. Omega: Jurnal Fisika dan Pendidikan Fisika, 4(1), pp.1-1.

Ackroyd, J.A.D., 2011. Sir George Cayley: the invention of the aeroplane near Scarborough at the time of Trafalgar. Journal of Aeronautical History Paper No, p.6.

Oppermann, R.H., 1938. National advisory committee for aeronautics: Report No. 624, Two-Dimensional Subsonic Compressible Flow Past Elliptic Cylinders, by Carl Kaplan. 8 pages, illustrations, 23× 29 cms. Washington, Government Printing Office, 1938. Price 10 cents.

Jacobs, E.N., Ward, K.E. and Pinkerton, R.M., 1933. The Characteristics of 78 related airfoil section from tests in the Variable-Density Wind Tunnel (No. 460). US Government Printing Office.

Ravi, H.C., Madhukeshwara, N. and Kumarappa, S., 2013. Numerical investigation of flow transition for NACA-4412 airfoil using computational fluid dynamics. International Journal of Innovative Research in Science Engineering and Technology, 2(7), pp.2778-2785.

Eleni, D.C., Athanasios, T.I. and Dionissios, M.P., 2012. Evaluation of the turbulence models for the simulation of the flow over a National Advisory Committee for Aeronautics (NACA) 0012 airfoil. Journal of Mechanical Engineering Research, 4(3), pp.100-111.

Versteeg, H.K. and Malalasekera, W., 2007. An introduction to computational fluid dynamics: the finite volume method. Pearson education.

Cengel, Y.A. and Cimbala, J.M., 2012. Fluid Mechanics Fundamental and Aplication Third Edition.

Incropera, F. P., DeWitt, D. P., Bergman, T. L. and Lavine, A. S., 2007. Fundamentals of Heat and Mass Transfer(6th edition).

Marshall, J. and Plumb, R.A., 2008. Atmosphere, ocean and climate dynamics.

Launder, B.E., 2015. First steps in modelling turbulence and its origins: a commentary on Reynolds (1895)‘On the dynamical theory of incompressible viscous fluids and the determination of the criterion’. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 373(2039), p.20140231.

Menter, F.R., 1994. Two-equation eddy-viscosity turbulence models for engineering applications. AIAA journal, 32(8), pp.1598-1605.

Verhoff, A., Stookesberry, D. and Agrawal, S., 1992. Far-field computational boundary conditions for two-dimensional external flow problems. AIAA journal, 30(11), pp.2585-2594.

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Published

24-06-2020
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How to Cite

Pranto, M. R. I., & Inam, M. I. . (2020). Numerical Analysis of the Aerodynamic Characteristics of NACA4312 Airfoil. Journal of Engineering Advancements, 1(02), 29–36. https://doi.org/10.38032/jea.2020.02.001

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Section

Research Articles