The Non- Symmetric airfoil has different upper and lower surfaces, the surface above the chord line has greater curvature than the surface below the chord line. The symmetrical airfoil has identical upper and lower surfaces and the mean camber line and the chord line are same in this airfoil. There are two types of airfoils symmetric and non-symmetric. If the pressure below the wing is higher than the pressure above the wing, there is a net force upwards and this upward force generates lift. An Airfoil is defined as the cross section of a body that is placed in an airstream in order to produce an aerodynamic force in the most efficient manner possible. Aircrafts are able to fly due to aerodynamic force produced when a fluid passes over the airfoil. Key words: CFD, Lift, Drag, Pitching, Lift-to-Drag ratio.Īn aircraft acted upon by four aerodynamic forces Thrust, Drag, Lift and Weight. The S1223 RTL airfoil has been chosen as the most suitable design for the specified boundary conditions and the Mach number from 0.10 to 0.30. The numerical simulation of low speed and high-lift airfoil has been done using ANSYS- FLUENT (version 16.2) to obtain drag coefficient, lift coefficient, coefficient of moment and Lift-to-Drag ratio over the airfoils for the comparative analysis of airfoils. The method used for analysis of airfoils is Computational Fluid Dynamics (CFD). (Thermal) SSCET, SSGI, Bhilai, C.G., IndiaĪbstract – This paper presents investigation on airfoil S1223, S819, S8037 and S1223 RTL at low speeds to find out the most suitable airfoil design to be used in the low speed aircrafts. An Aerodynamic Comparative Analysis of Airfoils for Low-Speed Aircraftsī.E.
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