Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
ANALYSIS OF INFLUENCE OF PLAIN FLAP AND GURNEY FLAP ON AERODYNAMICS COEFFICIENTS OF THE AIRFOIL SELIG 1223 BY FINITE VOLUME METHOD
Submission Author:
Alyne Almeida , RN
Co-Authors:
Alyne Almeida, Luís Morão Cabral Ferro
Presenter: Luís Morão Cabral Ferro
doi://10.26678/ABCM.COBEM2017.COB17-2697
Abstract
Aerodynamics studies the behaviour of the flow of air or others gaseous fluids about bodies of arbitrary shape and compute the resulting forces and moments on these bodies. For a wing of an aircraft the lift and drag forces and the pitch moment are the more important results. High lift surfaces are devices used to increase the lift force of the wing, increasing in most case, the drag force too. The gurney flap and plain flap are two simple devices that can be used to increase the lift coefficient. The two-dimensional steady flow about the aerofoil can be computed using Computational Fluid Dynamics on the solution of Navier-Stokes equations. The main purpose of the developed study is to analyse the influence of these high lift devices on the aerofoil of an aircraft wing of an airplane of the Aerodesign Competition. In this paper a numerical study of the effect of these two high lift devices on SELIG 1223 aerofoil is presented. The typical Reynolds number of the flow is 2.0 to 6.0 x105. The flow was computed by the Finite Volume Method, using computational code ANSYS FLUENT. The domain of the flow is discretized by an unstructured grid with a boundary layer mesh close to the aerofoil. A comparison for evolution of aerodynamics coefficients versus angle of attack, pressure coefficient distributions on the contour and streamline flow pattern for clean aerofoil and aerofoil with plain and gurney flap devices are presented.
Keywords
gurney flap, plain flap, Lift, CFD, FLUENT®
