Wind tunnel test of a whirl flutter aeroelastic demonstrator

This article presents the design, development and wind tunnel testing of a whirl flutter demonstrator. First, the physical principle of the whirl flutter is explained. Next, the mechanical concept of the demonstrator is described, and preparatory experiments are outlined. The main focus is on the wind tunnel measurements, including the methodology and test equipment, the result assessment methodology, and the result examples. Finally, future activities are outlined, and outcomes are formulated