Abstract
To study effects of the upstream flow field changing on the downstream flow field of transonic turbine, different three-dimensional bowed blades, which are the stator blades of transonic turbine stage, were designed in this paper. And then numerical calculations were carried out. The effects on downstream flow field were studied and analyzed in detail. Results show that, at the middle of stator blades, although the increasing Mach number causes the increase of shock-wave strength and friction, the middle flow field of downstream rotors is improved obviously. It is an important change in transonic condition. This causes the loss of the rotor's middle part decreased greatly. Correspondingly, efficiency of the whole transonic stage can be increased.
| Original language | English |
|---|---|
| Pages (from-to) | 31-35 |
| Number of pages | 5 |
| Journal | Journal of Harbin Institute of Technology (New Series) |
| Volume | 16 |
| Issue number | 1 |
| State | Published - Feb 2009 |
| Externally published | Yes |
Keywords
- Bowed blade
- High pressure turbine
- Low aspect ratio
- Transonic turbine
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