Experimental Turbine Research at DLR Goettingen

摘要

At DLR Goettingen (Germany) two windtunnels especially adapted to turbine research in the transonic flow regime are available. These are the "Windtunnel for Straight Cascades" and the "Windtunnel for Rotating Cascades". The Straight Cascade windtunnel is of blow-down type, operating in the Mach number range of 0.2 to 1.6. The Rotating Cascade Tunnel is a facility with closed flow path enabling the independent variation of Mach and Reynolds number. In the Rotating Cascade Tunnel the investigated objects range from isolated vanes to 1.5 stages. In the following the features of the windtunnels will be described and some experimental results shown.