At present, off-design centrifugal compressor suffers from great instabilities, such as rotating
stall and surge, which lead to work failure, strong pressure fluctuations, and violent …

The decrease in the performance of centrifugal compressors operating at low Reynolds
numbers (eg, unmanned aerial vehicles at high altitudes or small turbomachines) can reach …

In compression systems, the stable operating range is limited by rotating stall and/or surge.
Two distinct types of stall precursors can be observed prior to full scale instability: the …

In turbocharger applications, bleed air near the impeller exit is often used for secondary flow
systems to seal bearing compartments and to balance the thrust load on the bearings. There …

“Two-regime-surge” is a special instability behavior of compressors, which was investigated
in this paper. When the compressor operates at medium rotor speed, mild surge happens …

This paper describes in detailed flow field in a centrifugal compressor with a vaned diffuser
at off design point. Especially, we conducted both the experimental and numerical analysis …

Flow instability conditions, in particular during surge and stall phenomena, have always
influenced the operational reliability of turbocompressors and have attracted significant …

To expand the stable operating range of compressors, understanding the mechanism of flow
instability at low flow rates is necessary. In this paper, the mechanism of stall and surge in a …

The occurrence and development of centrifugal pump rotating stall is closely related to
disturbance in the incoming flow. The seal clearance leakage is an inherent disturbance in …

The stable range of operation for the centrifugal compressor significantly influences the
dynamic, economic, and environment-friendly characteristics of power systems. A deep …