Research on Aerodynamic Optimization Method of Multistage Axial Compressor under Multiple Working Conditions Based on Phased Parameterization Strategy

Table 1

Performance comparison at multiple conditions before and after optimization.

Working point	Flow rate (kg/s)	Total pressure ratio	Adiabatic efficiency (%)	Surge margin (%)
Original (N = 1.0)	112.1	3.54	82.1	10.2
Optimized (N = 1.0)	111.4	3.54	82.4	15.9
Relative change	−0.6%	0.0%	+0.3	+5.7
Original (N = 0.8)	86.45	2.47	83.4	28.2
Optimized (N = 0.8)	86.05	2.47	84.8	26.7
Relative change	−0.5%	0.0%	+1.4	−1.5