alexa NACA653218 Airfoil Aerodynamic Properties
ISSN: 2168-9792

Journal of Aeronautics & Aerospace Engineering
Open Access

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Research Article

NACA653218 Airfoil Aerodynamic Properties

Abdelghany ES1, Abdellatif OE2, Elhariry G3and Khalil EE4*

1Institute of Aviation Engineering, Cairo, Egypt

2Department of Mechanical Engineering, Benha University, Egypt

3Department of Mechanical Engineering, Cairo University, Egypt

4Department of Mechanical Engineering, Cairo University, Egypt

Corresponding Author:
Khalil EE
Professor, Department of Mechanical Engineering
Cairo University, Egypt
Tel: +49-1578-4305165
E-mail: [email protected]

Received April 11, 2016; Accepted April 29, 2016; Published May 03, 2016

Citation:Abdelghany ES, Abdellatif OE, Elhariry G, Khalil EE (2016) NACA653218 Airfoil Aerodynamic Properties. J Aeronaut Aerospace Eng 5:168. doi:10.4172/2168-9792.1000168

Copyright: ©2016 Abdelghany ES, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

In this research we have obtained the drag and lift coefficients, velocity, pressure and path lines contours using CFD which can also be determined by using wind tunnel experimental test. This process is relatively difficult and surely price more than CFD technique cost for the same problem solution. Thus we have gone through analytical method then it can be validated by experimental testing. A CFD procedure is described for determination aerodynamic characteristics of subsonic NACA653218 airfoil. Firstly, the airfoil model shape, boundary conditions and meshes were all formed in GAMBIT® 2.3.16 as a pre-processor. The second step in a CFD model should be to examine the effect of the mesh size on the solution results. In order to save time take case for a grid with around 100000 cells. The third step is validation of the CFD NACA653218 airfoil shape model by different turbulence models with available experimental data for the same model and operation conditions. The temperature of free stream is 288.2 K, which is the same as the environmental temperature. At the given temperature, the density of the air is ρ=1.225kg/m3, the pressure is 101325 Pa and the viscosity is μ=1.7894×10-5 kg/m s. A segregate, implicit solver is utilized (FLUENT® processor) estimate were prepared for angles of attack variety from -5 to 16°. The Spalart-Allmaras turbulence model is more accurate than standard k – ε model, RNG k – ε model and standard model k–ε models. For lift coefficient, it is found maximum error by Spalart-Allmaras model about 12% lower than other turbulence models. For drag coefficient, it is found maximum error by Spalart-Allmaras model about 25% lower than other turbulence models. For pitching moment coefficient, it is found maximum error by Spalart-Allmaras model about 30% lower than other turbulence models.

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