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| Asıl Yazarlar: | , |
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| Materyal Türü: | Recurso digital |
| Dil: | |
| Baskı/Yayın Bilgisi: |
Zenodo
2026
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| Konular: | |
| Online Erişim: | https://doi.org/10.5281/zenodo.20004188 |
| Etiketler: |
Etiketle
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İçindekiler:
- <p>This study investigates the onset of transonic buffet in large<br>civil fan blades numerically. As fan blades are designed to be<br>longer and more flexible to meet increasing efficiency demands,<br>they become more susceptible to aerodynamic instabilities. One<br>such instability, transonic buffet, is characterised by unsteady<br>shock wave–boundary layer interactions (SWBLI) that can induce<br>periodic shock motion and potential structural vibrations.<br>Using the in-house unsteady Reynolds-Averaged Navier–Stokes<br>(URANS) solver AU3D, this work analyses the shock movement<br>behaviour on a civil fan blade, where high-speed aeroelastic<br>instability was observed experimentally. A range of operating<br>conditions is simulated, revealing distinct regimes of shock behaviour.<br>Buffet here is identified around the design speed of the<br>fan at flow rates greater than those for peak efficiency. Particular<br>attention is given to identifying the onset of buffet and examining<br>its dominant frequency and modal forcing characteristics. This<br>paper aims to provide deeper understanding into the underlying<br>mechanisms of shock buffet in civil fan blades.</p>