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Aeroacoustics of an axial ducted low Mach-number stage: numerical and experimental investigation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pestana, Miguel Pereira, Antonio Salze, Édouard Thisse, Johan Sanjose, M. Pilar Oteiza Jondeau, Emmanuel Souchotte, Pascal Roger, Michel Moreau, Stéphane Regnard, Josselin David Florian Gruber, Mathieu Simon Paul |
| Copyright Year | 2017 |
| Abstract | This paper presents an experimental and numerical investigation of a ducted low-speed axial fan. The stator row is heterogeneous with 3 thickened vanes expected to have a non-negligible impact on the radiated noise. A good agreement for pressure ratio / mass flow rate characteristics is obtained between numerical and experimental results up to the onset of rotating stall. Hot-wire velocity profiles at the inlet assessed the effectiveness of a turbulence control screen added to prevent from inflow distortions. Induct acoustic measurements allowed a detailed description from wall-pressure spectra up to modal decompositions upstream and downstream of the fan. Acoustic modes were identified at the first two blade passing frequencies, which should be cut-off with a homogeneous stator row. |
| File Format | PDF HTM / HTML |
| DOI | 10.2514/6.2017-3215 |
| Alternate Webpage(s) | https://acoustique.ec-lyon.fr/publi/aiaa_2017_3215.pdf |
| Alternate Webpage(s) | https://doi.org/10.2514/6.2017-3215 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
