This paper conducts a study on the empirical and semi-empirical models for performance prediction of multi-stage axial compressors based on a streamline curvature code. By verifying and integrating the models in literature, a matching loss calculation module is set up, and the endwall loss model is improved. An approach for revising the S2 forward problem is developed with S1 stream surface calculation, and the contradiction between the angle of incidence and deviation angle models based on the data from traditional cascade tests and state-of-the-art airfoils is solved. Then, a S2 analysis program with high solution accuracy is developed. Three experimental compressors with different work coefficients are used to validate the approach. An overall comparison demonstrates that the improved program can have high accuracy and stability, and is applicable for performance analysis of multi-stage axial compressors.
YANG Xiaofei
,
JIANG Yongsong
,
PAN Ruochi
,
MENG Dejun
. 2D performance prediction approach for multi-stage axial compressors[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020
, 41(3)
: 123515
-123515
.
DOI: 10.7527/S1000-6893.2019.23515
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