Work on rotating stall and its related disturbances have been in progress since the Second
World War. During this period, certain “hot topics” have come to the fore—mostly in response …

The evolution of unsteady vortex structures in the tip region of an axial compressor rotor is
investigated based on delayed detached eddy simulation. The vortex structures are …

A centrifugal compressor is operated at unsteady exit conditions in many scenarios. The
performance of compressor stability is notably altered by the unsteady conditions, but …

This paper describes the role of tip leakage flow in creating the leading edge separation
necessary for the onset of spike-type compressor rotating stall. A series of unsteady …

A kind of foam metal casing treatment (FMCT) is proposed and experimentally tested on a
low-speed axial flow compressor in this work. Foam metal is a foam-like substance with a …

The phenomena prior to rotating stall were investigated in a high-speed compressor test rig
using optical and pneumatic measurement techniques. A number of throttling procedures …

The influence of the moving endwall on the behavior of the tip leakage flow in compressors
holds substantial significance. This work investigates the unsteadiness of the compressor's …

Abstract Non-Synchronous-Vibration (NSV) in high-speed turbomachinery compressors is
an aeroelastic phenomenon which can have devastating consequences, including loss of …

Jet engines with boundary layer ingestion (BLI) could offer significant reductions in aircraft
fuel burn compared with podded turbofans. However, the engine fans must run continuously …

The spike-type rotating stall in axial compressor is one of the major causes for the
aeroengine failure. The evolution of the flow structures, especially in the rotor tip region, is …