A novel test facility for transonic fans has been constructed and commissioned at École Centrale de Lyon (ECL) within the Project PHARE-2. The facility is instrumented with multi-physical measurement systems to deeply investigate aeroelastic and aeroacoustic phenomena. To enable long term fundamental research the composite material Open-Test-Case Rotor ECL5 is currently under development which shall be established as a new reference case for method development.

Within the present publication the project objectives, the current rotor design, ECL5v2, and details on the test facility are presented. With the goal to establish future academic collaborations the authors aim to initiate a discussion within the research community in an early stage of the test case development to receive constructive feedback on the design and research approach.

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