In order to investigate the continuous flow through turbomachinery blading the institute set up a transonic test cascade. Within this test cascade turbomachinery blades can be arranged linearly. Optical access to the flow section is enabled through windows in the test rig. Together with pressure and temperature transducers modern laser-optical equipment is used for flow analysis in subsonic and transonic flows. The blade cascade can be exchanged easily so that various blading can be investigated.
In the following picture you can see a linear blade cascade as used in a previous project with windows on both sides to enable optical access to the transonic flow region. The flow section (circular design) can be easily exchanged with other test sections. In the foreground the Laser Doppler Velocimeter (LDV) probe is visible.
Institute of Thermal Turbomachinery and Machine Dynamics
Graz University of Technology
Tel: +43 (0)316 873 - 7226
Fax: +43 (0)316 873 - 107226