HOMER (Holistic Optical Metrology for Aero-Elastic Research) is aiming at deploying and further developing state-of-the-art non-intrusive experimental flow diagnostic methods to include and combine both the aero-dynamic and aero-elastic analysis. As a result fluid-structure-interactions (FSI) experiments realised in wind tunnels and other specific test facilities will deliver an unprecedented combination of knowledge and data from the fluid and the structure domain, with increased coherence and interconnection. The related Technology Readiness Levels to be tackled and achieved within HOMER are spanning from TRL 3 to TRL 6.
The forces acting on an aircraft in the aeroelastic regime are linked through the equations of dynamics. More schematically, the collar triangle depicts the above interconnection (see Fig. 1).
The particular objective of the project is to develop a previously unattained combined non-intrusive diagnostic approach achieved by simultaneous optical measurements of time-resolved volumetric flow fields (including fluid flow accelerometry) by using 3D PIV/LPT methods, of load distributions on surfaces by pressure from PIV/LPT approaches and by Pressure Sensitive Paint (PSP) and of the dynamics of surface movements resp. deformations by using DIC and advanced point or marker tracking techniques.