Abstract: Compared to the subject of rotating stall, less attention has been given to prestall flow disturbances in turbomachinery. This is mostly due to the fact that these phenomena, often referred to as Rotating Instabilities, ...

Abstract: Abstract. This study presents and evaluates three independent stall warning approaches based on unsteady casing pressure measurements acquired above the rotor blade tips. The methods are applied to two different axial ...

Abstract: The aim of the present paper is to improve the physical understanding of discrete prestall flow disturbances developing in the tip area of the compressor rotor. For this purpose, a complementary instrumentation was used ...

Abstract: Abstract. The application of active flow control (AFC) methods in an intercompressor duct (ICD) offers the possibility of further length reduction while suppressing separations. In particular, pulsed jet actuators (PJAs) ...