Time-Accurate Simulation of a Manoeuvring Aeroelastic Delta Wing at High Angle of Attack

Kurzfassung

The central challenge is to simulate the time-accurate aeroelastic coupling of the flexible aircraft body with a non-linear aerodynamic solver in guided or free-to-roll manoeuvres. The approach described in this paper is one of two investigated variants in the DLR project SikMa and is characterized by the use of a multibody system (MBS) to account for the elastic structure as well as the flight mechanics and its loose coupling to the computational fluid dynamics (CFD) software. The exchanged data is interpolated with a general mesh coupling tool and transferred through an internet socket allowing a distributed computational environment. The initial test applications are coupled simulations of the manoeuvring elastic wind tunnel model of a generic delta wing in guided motion.