Lörcher, Frieder, Hub, Sandra, Sanjosé, Marlène et Moreau, Stéphane.
2022.
« Investigations concerning the flow stabilization of backward curved centrifugal impellers at low flow rate ».
International Journal of Turbomachinery, Propulsion and Power, vol. 7, nº 4.
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Résumé
For a backward curved centrifugal fan, reducing volume flow rate from design operating point towards part load yields an increase in noise emission together with a reduction of efficiency. The spectral content of the emerging noise emission can be characterized by a subharmonic hump with several harmonics. Based on narrow-band acoustic measurements and numerical Lattice-Boltzmann simulations, a deeper insight is sought after. Downstream unsteady flow patterns are identified to play a central role in this performance deterioration; and geometrical flow stabilization means are investigated.
| Type de document: | Article publié dans une revue, révisé par les pairs |
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| Professeur: | Professeur Sanjosé, Marlène |
| Affiliation: | Génie mécanique |
| Date de dépôt: | 26 janv. 2023 23:48 |
| Dernière modification: | 25 janv. 2024 19:21 |
| URI: | https://espace2.etsmtl.ca/id/eprint/26139 |
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