SYMMETRIC AIRFOIL SERIES

SYMMETRIC AIRFOIL SERIES

Of the NACA air foils is described using a series of digits following the word NACA. The NACA aerofoils are air foil shapes for aircraft wings developed by the NATIONAL ADDVISORY COMMITTEE FOR AERONAUTICS (NACA). This force is known as AERODYNAMIC FORCE and can be resolved in to two components: LIFT and DRAG. When oriented at a suitable angle, the airfoil deflects the oncoming air, resulting in a force on the airfoil in the direction opposite and deflection.

The lift on an airfoil is primarily the result of its angle of attack and shape. Foils of similar function designed with water as the working fluid are called AEROFOIL. Subsonic flight airfoils have a characteristic shape with a rounded leading edge, followed by a sharp with a trailing edge, often with a symmetric curvature of upper and lower surfaces. The component parallel to the direction of motion is called drag. The component of this force perpendicular to the direction of motion called lift. An airfoil -shaped body moved through a fluid produces an aerodynamic force. The models are then subjected to CFD analysis.Īn airfoil is the cross -sectional shape of a wing, blade or sail. Surface roughness are created for two different shapes at two different positions on the upper surface of the airfoil. Airfoil with and without roughness are generated using modeling software. NACA 2412 airfoil in subsonic condition is considered. This alters flow properties and results in reduced drag and increases aerodynamic efficiency. Smooth profile of an airfoil is altered by applying certain surface roughness in transition and turbulent boundary layer regions. The aim of this research paper is to choose best aerodynamically efficient airfoil.

One of the basic reasons of drag is the formation of turbulent nature in the rear side of the airfoil and in turn creates pressure drag. Nehru Institute of Engineering and Technology, Coimbatore.Ībstract:- Numerous researches are going on about drag reduction and improving the aerodynamic efficiency of flight vehicles, wind turbines automotive vehicles, etc., by adopting various methods. Investigation of Aerodynamic Efficiency on NACA 2412 AirfoilġDhivyadharshini.V, 2Sri Krishna.R, 3Kamaleshwari.

Symmetric airfoil