Abstract

This paper deals mainly with pneumatic measurements on a radial turbine nozzle cascade. The full radial cascade guarantees the exit flow field periodicity downstream of it. A special traversing mechanism with a five — hole conical probe moving along a circular path behind the cascade was used for flow field investigation in this type of cascade with very low aspect ratio. The analyses of results of 2D and 3D pneumatic measurements including loss coefficient values are presented.

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