Abstract
A numerical method for the calculation of unsteady stator/rotor interaction in turbomachinery stage of arbitrary pitch ratio using time-inclined operator is presented. It is developed on the basis of the program solving the three dimensional, viscous, steady flowfield in the centrifugal compressor. Dual time-stepping is adopted to realize the unsteady simulation; time-inclined operator is employed to transform the Navier-Stokes equations. It is realized without an approximation to a ratio of small integers or to scale geometry, the passages used for computation are minimum, and the computation time is also small. The results using time-inclined operator are also compared with the computation using NUMECA. It shows the program developed by the author can predict the flowfield in the centrifugal compressor accurately.
| Original language | English |
|---|---|
| Pages (from-to) | 770-772 |
| Number of pages | 3 |
| Journal | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics |
| Volume | 26 |
| Issue number | 5 |
| State | Published - Sep 2005 |
| Externally published | Yes |
Keywords
- Arbitrary pitch
- Dual time-stepping
- Time-inclined operator
- Unsteady