| Citation: | ZENG Hanxuan, FAN Tengbo, WEN Mengyang, et al. Surge prediction of radial compressors based on three-dimensional body-force method[J]. Journal of Aerospace Power, 2024, 39（2）：20220047 doi: 10.13224/j.cnki.jasp.20220047
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To predict the three-dimensional and unsteady flow features of surge accurately and efficiently, a method of surge simulation for centrifugal compressors based on the three-dimensional body-force model was proposed. The method was further validated on a transonic centrifugal compressor. Typical flow field features like the development of the recirculation bubble at the impeller inlet tip, the existence of rotating stall during surge, and volute-induced asymmetry were captured. By comparing against the unsteady Reynolds averaged Navier-Stokes (URANS) results (validated by the experimental results), it can be shown that the proposed method is capable of predicting key features of surge, with the calculation time about 1/20 of the URANS method.
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