Mechanism of stall and surge in centrifugal compressor

A centrifugal compressor is often used as the core component
of a turbocharger or air conditioning system, which is regarded
as an indispensable fluid machine in the industrial production.
Compared with an axial compressor, a centrifugal compressor
has some advantages, such as single-stage high pressure ratio,
compact structure, light weight, and so on. With the increasing
demand for high performance, manufacturers need to design
more complex compressor components with wider operating
ranges. The flow instability at low flow rates can lead to a high
aerodynamic loss and even structural damage. It is therefore
important for in-depth understanding of the mechanisms that
lead to unstable flow behaviors in centrifugal compressors.