The paper presents an experimental investigation of the flow field instability in a centrifugal
pump. Pressure fluctuations were measured with transducers placed flush with the inlet duct …

Despite its simple geometry, the turbulent flow in vaneless diffusers is asymmetric and highly
skewed. In the present work, a frozen eddy viscosity approach was employed to investigate …

Heightened interest in visualizing the flow structure under critical conditions for aero-engine
led to further understanding of the underlying physical mechanism as well as to a better …

The impeller is one of the core components of a large-scale centrifugal compressor, and its
performance directly affects the stability and safety of the centrifugal compressor. The non …

Flow in the diffuser pump is dominated by unsteady interactions due to the relative motion
and close proximity between the rotating impeller and stationary diffuser, thus, resulting in …

An accurate estimation of rotating stall is one of the key points for high-pressure centrifugal
compressors, as it is often connected with the onset of detrimental subsynchronous …

Rotating stall limits the operating range and stability of the centrifugal compressor and has a
significant impact on the lifetime of the impeller blade. This paper investigates the …

The stability prediction and unsteady-flow characteristic explanations of centrifugal
compressors mostly focus on radial vaneless diffusers with parallel walls (PWs). However …

In the current industrial research on centrifugal compressors, manufacturers are showing
increasing interest in the extension of the minimum stable flow limit in order to improve the …

An accurate characterization of rotating stall in terms of inception modality, flow structures,
and stabilizing force is one of the key goals for high-pressure centrifugal compressors. The …