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 language | English |
|---|---|
| Pages (from-to) | 1667-1679 |
| Number of pages | 13 |
| Journal | Hangkong Dongli Xuebao/Journal of Aerospace Power |
| Volume | 29 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 2014 |
Keywords
- Aerodynamic design
- Criterion
- Three-dimensional simulation
- Velocity triangle
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