24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-5.10.1

TIME-ACCURATE SIMULATION OF A MANOEUVRING AEROELASTIC DELTA WING AT HIGH ANGLE OF ATTACK

J. Arnold, G. Einarsson*, T. Gerhold**
DLR, Inst. of Aeroelasticity, D-37073, Göttingen, Gemany; *DLR, Inst. of Aerodynamics and Flow Technology, D-38108, Braunschweig, Gemany; **DLR, Inst. Of Aerodynamics and Flow Technology, D-37073, Göttingen, Gemany

Keywords: aeroelasticity, fluid-structure-flight mechanics coupling, elastic multi-body system, loose coupling, distributed computational environment

The central challenge is to simulate the time-accurate aeroelastic coupling of the flexible aircraft body with a non-linear aerodynamic solver in manoeuvres. The approach is characterized by using a multibody system (MBS) to account for structural elasticity as well as flight mechanics and its loose coupling to the computational fluid dynamics (CFD) software. Initial test applications are coupled simulations of the manoeuvring elastic wind tunnel model of a generic delta wing in guided motion.

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