Analysis Methods for Aerodynamic Instability Detection on a Multistage Axial Compressor

Table 1

Design parameters of the two-stage low-speed axial compressor.

Parameter	Value
Outside diameter/mm	900
Hub-tip ratio	0.6
Nominal speed/(r/min)	1500
Total pressure ratio	1.035
Efficiency	0.88
Mass flow/(kg/s)	25
Row	First rotor	First stator	Second rotor	Second stator
Blade profile	NACA-65-010
Chord length/mm	122	106	130	117
Blade number	19	22	18	20
Radial clearance/mm	1.5	0	1.2	0