Experimental Data on High-Speed Flow Past the Root Blade Cascade

Abstract

The paper deals with experimental results of high-speed aerodynamic research on a blade cascade. The blade cascade represents root section of the last stage rotor blades of large output steam turbine. Basic aerodynamic characteristics of the blade cascade are presented together with photographs of flow fields in the range of transonic flow regimes. Results are analysed and discussed to provide a new knowledge on design and operation of the last rotor at the region of the blade root