Transonic compressor Darmstadt - Open test case Introduction of the TUDa open test case

Designs for future aero engines aim increased efficiency with reduced exhaust gas and noise emissions. To achieve these goals, comprehensive physical understanding highly innovative solutions are necessary. Even though computational capabilities rising, the required confidence level is restrained. understand validate theoretical numerical models, extensive experiments at realistic operating conditions crucial. The modular compressor Transonic Compressor Darmstadt test facility Technical University of enables investigations prototype BLISK rotors in single or 1.5-stage setups, high-speed conditions. Extensive steady time-resolving instrumentation used to determine aerodynamics performance as well aeroelastics. foster improvements modelling predictability based on high quality experimental data, TUDa-GLR-OpenStage case introduced. It comprises a stage setup, including rotor, 3D-optimized stator annulus contour. data set supplemented measurement inlet outlet running tip clearances. This paper describes open case, related geometries, procedures corresponding results, state unsteady aerodynamics. Ultimately, it aiming provide standard development models comparable validation.