Volume 29 Issue 10
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Article Navigation >  Journal of Aerospace Power  > 2014  >  (10): 2434-2442
ZHANG Peng, LIU Bo, CAO Zhi-yuan, SHI Lei. Optimization design of a two-stage counter-rotating compressor under overall working conditions[J]. Journal of Aerospace Power, 2014, (10): 2434-2442. doi: 10.13224/j.cnki.jasp.2014.10.021
Citation: ZHANG Peng, LIU Bo, CAO Zhi-yuan, SHI Lei. Optimization design of a two-stage counter-rotating compressor under overall working conditions[J]. Journal of Aerospace Power, 2014, (10): 2434-2442. doi: 10.13224/j.cnki.jasp.2014.10.021
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Optimization design of a two-stage counter-rotating compressor under overall working conditions

doi: 10.13224/j.cnki.jasp.2014.10.021

  • School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China

  • Received Date: 2013-06-28
  • Publish Date: 2014-10-28
    Abstract
  • In order to improve aerodynamic performance of the counter-rotating compressor in an all-round way, overall working conditions optimization design was carried out on the Rotor 2 of a two-stage counter-rotating compressor in multistage environment based on artificial neural network and genetic algorithm. The changes of geometry, overall performance and flow field were compared and analyzed. Results show that: after the optimization, the overall isentropic efficiency and pressure ratio of the counter-rotating compressor are both improved, meanwhile the range of mass flow is widened. The isentropic efficiency of the counter-rotating compressor increases by 0.3% on the design point, increases by 1.5% near the stall point, and the surge margin increases by 6.37%. After the optimization, the overall isentropic efficiency and pressure ratio of the Rotor 1 are almost unchanged, but those of Rotor 2 are raised much. The isentropic efficiency of Rotor 2 improves by 1% on the design point, and the isentropic efficiency is improved by 2.5% near the stall point. Also, the flow fields of Rotor 1, Rotor 2 and outlet guide vane (OGV) at the tip are improved remarkably near the stall point.

     

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