Volume 29 Issue 4
Apr.  2014
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MENG Fei, TIAN Xiao-pei, SHAN Peng. Parametric research on improved Qiu slip factor modelfor centrifugal compressor impellers[J]. Journal of Aerospace Power, 2014, 29(4): 944-952. doi: 10.13224/j.cnki.jasp.2014.04.027
Citation: MENG Fei, TIAN Xiao-pei, SHAN Peng. Parametric research on improved Qiu slip factor modelfor centrifugal compressor impellers[J]. Journal of Aerospace Power, 2014, 29(4): 944-952. doi: 10.13224/j.cnki.jasp.2014.04.027

Parametric research on improved Qiu slip factor modelfor centrifugal compressor impellers

doi: 10.13224/j.cnki.jasp.2014.04.027
  • Received Date: 2013-01-16
  • Publish Date: 2014-04-28
  • To adapt the slip factor model proposed by Qiu to the through-flow design of micro-centrifugal impellers, three empirical parameters were introduced to reduce the system error. Firstly, the solving method of these empirical parameters and the impact on the design accuracy were researched. It is seen that empirical parameter cr influences the design accuracy greatly. Secondly, with employment of the improved Qiu slip factor model, a micro-centrifugal impeller was designed. The predicted slip factors impacted by cr in the model were compared with the impeller-outlet-averaged slip factors resulted from the CFD flow field simulation. The most suitable values of cr were found at different prescribed design overall parameters. It is found that cr nearby 0.7 has a best estimation, though the overall parameters of micro- or large-centrifugal compressor impeller vary widely.

     

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