G.H. Parker, R.C. Maple, P.S. Beran

Aircraft with stores can exhibit an aeroelastic phenomenon characterized by limited amplitude, self-sustaining oscillations produced by aerodynamic-structure interactions known as limit-cycle oscillation. In order to study this phenomenon, a first order accurate code has been developed to interface a modal structural model with a commercial, parallel, Navier-Stokes fluid solver with a deforming grid capability. The commercial solver chosen was FLUENT 6.1 by FLUENT Inc. Limit-cycle oscillation was successfully obtained with the Goland wing. Grid refinement was found to slightly decrease the oscillating frequency. A tip store and underwing stores were successfully added to the Goland wing. These stores did not affect the limit-cycle oscillation. The code was also used to get a preliminary look at a documented F-16C limit-cycle oscillation flight test scenario.

International Forum on Aeroelasticity and Structural Dynamics, 2005, München

Conference Paper

englisch

21,0 x 29,7 cm, 12 Seiten

DGLR-Bericht, 2005, 2005-04, International Forum on Aeroelasticity and Structural Dynamics 2005; S.1-12; 2005; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

in getr. Zählung;

aerodynamics, aeroelasticity, external stores

Bibliothek

2005