Abstract
Screech is, so far, the least understood, least predictable component of supersonic jet noise. The main reason for this is its sensitivity to change in the surrounding environment, such as the jet Mach number, the jet temperature and the nozzle lip thickness. It has been regarded as a potential cause of sonic fatigue to jet engines. The goals of this work were to understand the amplitude and frequency of screech to be dependent on nozzle lip thickness. It was found that the screech intensity can be increased by 10 dB simply by using a thicker lip nozzle and the frequency of screech was decreased by the variations.
| Original language | English |
|---|---|
| Pages (from-to) | 232-234 |
| Number of pages | 3 |
| Journal | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics |
| Volume | 27 |
| Issue number | 2 |
| State | Published - Mar 2006 |
Keywords
- Jet noise
- Screech tones
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