Experimental Analysis of High Reynolds Number Aero-Structural Dynamics in ETW

The paper reports about the aero-structural dynamical experiments with an elastic wing model which were conducted during the High Reynolds Number Aero-Structural Dynamics project by RWTH Aachen University in the cryogenic European Transonic Windtunnel, with funding from the German Research Foundation. The static and dynamic experiments have been performed in transonic flow at different windtunnel conditions concerning Reynolds number (up to 73 millions) and dynamic pressure (up to 0.13MPa). Starting with the description of the wing model, the measuring equipment and envelopes of the experiments, selected results of static and dynamic experiments are presented, partly in comparison with results obtained from numerical predictions during the preparation phase of the specimen and the experiments. For this the Computational Aero-Structural Dynamics package SOFIA of RWTH Aachen University was used. Results have been collected in a data base which will be made freely accessible to the aerodynamic and aeroelastic community in the near future.