Abstract: Abstract. In this paper, the influence of different back vanes (BVs) and back channels (BCs) on fiber entry into the back shroud cavity is experimentally investigated. Vane and channel contours correspond to backward curved ...

Abstract: Rotating instability (RI) occurs at offdesign conditions in compressors, predominantly in configurations with large tip or hub clearance ratios of s* ≥3%. RI is the source of the blade tip vortex noise and a potential ...