Abstract
Based on fast fourier transformation for the typical profile of NASA67 unsteady flow field, the rotor-stator interactions, the circumferential distributions of typical unsteady perturbations at the rotor-stator interface and the inter-blade phase angle were analyzed in the frequency-domain. Also, some phenomena difficult to observe in time-domain were visualized in frequency-domain. Finally, the deterministic stresses from five-order harmonic synthesis and unsteady simulation were compared, meanwhile the feasibility and advantage of nonlinear harmonic method in modeling the deterministic stresses were analyzed.
| Original language | English |
|---|---|
| Pages (from-to) | 1371-1377 |
| Number of pages | 7 |
| Journal | Hangkong Dongli Xuebao/Journal of Aerospace Power |
| Volume | 22 |
| Issue number | 8 |
| State | Published - Aug 2007 |
Keywords
- Aerospace propulsion system
- Deterministic stresses
- Frequency-domain analysis
- Nonlinear harmonic method
- Unsteady simulation
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