Unsteady flow data from the transonic test turbine obtained by Laser-Doppler-Velocimetry:  Experimental investigations in transonic turbines have been performed at the Institute for Thermal Turbomachinery and Machine Dynamics over the last five years. The experimental data and the stage geometry are offered to the scientific community in order to support the understanding of unsteady three-dimensional transonic flow through cooperative CFD simulation. The data focuses on unsteady flow phenomena in transonic turbines (stator-rotor interaction). It has been recorded at Technical University Graz within the framework of program Y-57 TEC, funded by the Austrian Science Foundation and the Austrian Ministry for Transport, Innovation and Technology. If you use these data, please make sure to acknowledge the TU Graz and cite the following publication:  E.Goettlich, F.Neumayer, J.Woisetschlaeger, W.Sanz, F.Heitmeir (2004) "Investigation of Stator-Rotor Interaction in a Transonic Turbine Stage Using Laser Doppler Velocimetry and Pneumatic Probes", ASME Journal of Turbomachinery, April 2004, Vol. 126 pp 297-305 For our information and due to our responsibilities to our governmental funding agency, we kindly ask you to fill out the registry form below before downloading the data sets. The information you provide is only for us and our funding agencies. Your data will not be shared with any third party. After you send your information you will be sent an email with a download link.  The data contains information on the stage geometry, boundary conditions, velocity, turbulence and cross-moments for two planes; one located between the stator and the rotor, and the other downstream of the rotor blades.