25th Congress of International Council of the Aeronautical Sciences, 3 - 8 September 2006, Hamburg, Germany
Paper ICAS 2006-3.9.2

AIRBRAKE INDUCED FIN BUFFET LOADS ON FIGHTER AIRCRAFT

C. Breitsamter
TU Munich, Germany

Keywords: Vortex flows, high agility aircraft, unsteady loads, fin buffeting, airbrake

The investigations focus on the airbrake influence on fin buffet of a single-finned high-agility aircraft. Wind tunnel tests are performed including unsteady flow field and fin surface pressure measurements. Turbulence intensity and spectral distributions are evaluated to analyze the flow physics involved and quantify unsteady aerodynamic loads.

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