  Aerodynamic design process of multi - stage axial flow compressor usually
uses the way that combines the S2 flow design and three-dimensional CFD
numerical simulation analysis. Based on Mr. Wu Zhonghua's " Three-dimensional
flow theory ", aiming at the S2 flow design matching parameters and the
three-dimensional CFD numerical simulation data, through autonomous
programming, the S2 design parameter distribution and the corresponding CGNS
format CFD calculation results are extracted. Then make the comparative
analysis of the two and provide the modification suggestion of the design. The
examples have been tested by the comparison and correction of the eight-stage
axial flow compressor calculation and finally improve the design performance of
the compressor design. The design adiabatic efficiency increases by 0.5%. The
surge margin increases by more than 5%. The validity and feasibility of the
method are verified.
