22nd Congress of International Council of the Aeronautical Sciences, Harrogate, UK, 28 August - 1st September, 2000
Paper ICAS 2000-2.11.R1

THE EFFECT OF ICE-ACCRETION ON THE LATERAL CONTROLABILITY

P. Fifka, Z. Ancik
Brno University of Technology, Czech Republic

Keywords: ice accretion, lateral control

The project is aimed to provide data to evaluate the influence of the ice accretion on aircraft flight characteristics and therefore to ensure considerable safety in the course of flighttesting. Indeed it will be possible to use these results in the course of the certification procedure. The task definition was to locate the simulator of the ice-accretion behind the active surface of the de-icing system and perform a calculation of the aerodynamic forces and moments acting on the whole airfoil section and on the aileron. The first step was to find the position of ice-accretion for varied droplet diameters. The next step was to analyze the aerodynamic characteristic of the airfoil with imitation of the ice-accretion on the upper surface of the airfoil using commercial software FLUENT. The paper is focused on this part of the solution. An influence of the ice accretion on the aileron hinge moment in reference to the aeroplane ability to exit safely the icing conditions is reviewed in the conclusion.

view full paper