High-fidelity multidisciplinary maneuver simulations of the Falcon 2000 LX ISTAR

Abstract

This paper presents high-fidelity multidisciplinary maneuver simulations of the new research aircraft Dassault Falcon2000LX ISTAR of the German Aerospace Center (DLR). These simulations are computed using the multidisciplinary processchains FSAerOpt and UltraFLoads for the DLR project HighFly (high-speed inflight validation). The goal of this project isthe validation of simulation models for virtual flight testing with data measured on the Falcon 2000LX ISTAR. The paperdescribes the individual numerical models and analyses of ISTAR: geometry (CAD), aerodynamics (CFD), control surfacedeflection in CFD, structure (CSM), aircraft mass distribution, and engine. It also gives a short overview of some Ultra-FLoads simulation processes, such as CFD-CSM coupling, trim analysis, and dynamic maneuver simulation. After that, thesimulation results such as steady-state CFD-CSM coupled simulation of different trimmed horizontal flights and simulationof different dynamic maneuvers (bank-to-bank and pull-up and push-down maneuver) are presented. The first comparisonsof the numerical simulations with the experimental data are also shown.