Volume 29 Issue 7
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ZHOU Kun, LIU Huo-xing, ZOU Zheng-ping, WANG Lei. Aerodynamic design of three-stage vaneless counter-rotating turbine[J]. Journal of Aerospace Power, 2014, (7): 1667-1679. doi: 10.13224/j.cnki.jasp.2014.07.021
Citation: ZHOU Kun, LIU Huo-xing, ZOU Zheng-ping, WANG Lei. Aerodynamic design of three-stage vaneless counter-rotating turbine[J]. Journal of Aerospace Power, 2014, (7): 1667-1679. doi: 10.13224/j.cnki.jasp.2014.07.021

Aerodynamic design of three-stage vaneless counter-rotating turbine

doi: 10.13224/j.cnki.jasp.2014.07.021
  • Received Date: 2013-04-13
  • Publish Date: 2014-07-28
  • 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.

     

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