Influence of stator tip clearance on compressor flow structure under near stall condition

  • XU Wen-feng ,
  • SUN Peng ,
  • HUANG Long-sheng
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  • (Ship and Marine Engineering College,Dalian Maritime University,Dalian 116026,China)

Received date: 2018-05-21

  Revised date: 2018-06-08

  Online published: 2018-06-08

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Abstract

Numerical simulation was used to study the effects of different chord length clearance structures on the flow field structure and aerodynamic performance of the transonic compressor stator blade under near stall condition, and the influence mechanism of tip clearance leakage flow on corner separation was also studied. Results show that the leakage flow produced by the tip clearance can eliminate the low energy fluid in the corner region, weaken the separation of the suction side, and reduce the blockage of convection, which delay the compressor stall. The front clearance improves the stator cascade performance as well as the full clearance. However, the rear clearance has little effect on the compressor performance, and the stability margin of the compressor is reduced.

Cite this article

XU Wen-feng , SUN Peng , HUANG Long-sheng . Influence of stator tip clearance on compressor flow structure under near stall condition[J]. Journal of Dalian Maritime University, 2018 , 44(4) : 74 -82 . DOI: 10.16411/j.cnki.issn1006-7736.2018.04.012

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