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Aerodynamic design of three-stage vaneless counter-rotating turbine

  • Beihang University
  • China Aviation Industry Corporation

Research output: Contribution to journalArticlepeer-review

Abstract

An aerodynamic design criterion was discussed for the 1+3/2 counter-rotating turbine by analyzing the velocity triangles. There are 8 key aerodynamic parameters in the criterion, based on the consideration of aerodynamic efficiency and some strength requirements. Then, an aerodynamic design for the 1+3/2 counter-rotating turbine was made according to the criterion, and a three-dimensional simulation was conducted for it. Finally, the conclusions were obtained. The criterion containing 8 key aerodynamic parameters is verified rationally and the efficiency of the turbine reaches 91%. The aerodynamic characteristics of 1+3/2 counter-rotating turbine are mainly decided by the load coefficient, and due to an optimal power distribution coefficient of the low pressure turbine, the efficiency of the low pressure turbine can be best.

Original languageEnglish
Pages (from-to)1667-1679
Number of pages13
JournalHangkong Dongli Xuebao/Journal of Aerospace Power
Volume29
Issue number7
DOIs
StatePublished - Jul 2014

Keywords

  • Aerodynamic design
  • Criterion
  • Three-dimensional simulation
  • Velocity triangle

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