Abstract
In order to investigate the influence of geometry on mixed-flow turbines performance, a commercial computational fluid dynamics (CFD) software NUMECA is used to compute the flow field characteristics of eight mixed-flow turbine rotors. The geometric differences between these rotors are inlet blade angle, inlet inclined angle, axial chord and blade number. Based on the three-dimensional models of these rotors, the entropy at rotor leading and trailing edges, the streamwise static pressure and relative velocity, and the rotor efficiency are computed. The effects of varying such geometries on rotor performance are compared. The results show that varying blade angle from hub to shroud to maintain constant incidence is beneficial for mixed-flow turbine.
| Original language | English |
|---|---|
| Pages (from-to) | 53-58 |
| Number of pages | 6 |
| Journal | Journal of Beijing Institute of Technology (English Edition) |
| Volume | 15 |
| Issue number | SUPPL. |
| Publication status | Published - Dec 2006 |
Keywords
- Computational fluid dynamics
- Mixed-flow turbine
- Rotor
- Turbocharger