22nd Congress of International Council of the Aeronautical Sciences, Harrogate, UK, 28 August - 1st September, 2000
Paper ICAS 2000-4.8.3

NAVIER-STOKES BASED DIRECT NUMERICAL AEROELASTIC SIMULATION

G. Britten, J. Ballmann
RWTH Aachen University of Technology, Germany

Keywords: aeroelasticity, cas, numerical simulation, fluid-structure interaction, elastic wing

This work describes a computational method for the treatment of solid fluid interaction (SOFIA) for the assessment of the aerodynamic performance of large span elastic wings by direct numerical aeroelastic simulation. The fluid flow is modeled by the Euler or by the Reynoldsaveraged Navier-Stokes equations. The elastic wing is modeled by a reduced structural model, in this case a generalized Timoshenko-like beam structure. Numerical results including detailed comparison to measured data are shown for a rectangular elastic wing specimen built within the framework of the Collaborative Research Centre SFB401 ”Modulation of Flow and Fluid- Structure Interaction at Airplane Wings” of the RWTH Aachen University of Technology.

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