When axial compressors operate under high-loading conditions, inherent unsteady flow
phenomena emerge in the tip region as a consequence of the tip leakage flow. These …

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

In this work, we conduct experimental investigations on a single-stage axial compressor to
shed lights on the dynamic stall phenomena via aeroacoustic measurements. For this, 8 …

With modern engine designs trending toward smaller cores to increase propulsive efficiency,
the gap-to-span ratio in compressors is expected to increase, especially for the rear stages …

Safely operating compressors is quite critical. Rotating stall is highly undesirable and affects
negatively the performance and stability of aero-engine compressors. It is important to …

The aerodynamic and aeroelastic behavior of an engine-like transonic compressor stage is
investigated in this paper. Simulations were carried out for the transonic compressor at the …

Unsteady flow phenomena are common in turbomachinery and have serious impacts on its
stable operation. This paper reports a self-induced unsteady phenomenon inside a …

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 …

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 …

When a compressor is throttled to the near stall point, rotating instability (RI) is often
observed as significant increases of amplitude within a narrow frequency band which can be …