Workshop ECL5/CATANA

From Feb. 17 2025 to Feb. 19 2025
Skylab - Lyon-Écully Campus
Séminaire
Modern turbomachinery is susceptible to complex, non-linear interactions between aerodynamic, aeroelastic, and aeroacoustic phenomena. As future engine architectures adopt Ultra-High-Bypass Ratio (UHBR) designs and lightweight composite fan blades to reduce greenhouse gas emissions and noise, these multi-physical interactions will become even more critical. However, significant knowledge gaps persist in understanding these processes and their impact on stability limits.

To address this challenge, the Turbomachinery Dpt of LMFA at Centrale Lyon has developed and experimentally tested an open-test case for a UHBR fan stage: the ECL5 fan stage [1-3]. Designed to reflect the characteristics of modern low-speed fans, ECL5 serves as a foundation for collaborative research.

The workshop ECL5 marks the beginning of an international research initiative, providing a platform where the open-test case and related results are shared and discussed with the research community.

[1] Pagès, V.; Duquesne, P.; Aubert, S.; Blanc, L.; Ferrand, P., Ottavy, X.; Brandstetter, C. UHBR Open-Test-Case Fan ECL5/CATANA. Int. J. Turbomach. Propuls. Power 2022, 7, 17. 10.3390/ijtpp7020017

[2] Schneider, A.; Fiquet, AL.; Paoletti, B; Ottavy, X; Brandstetter, C. Experiments on tuned UHBR open-test-case fan ECL5/CATANA/ Performance and Aerodynamics. Journal of Turbomachinery, 2024, 146 (8), 10.1115/1.4064231, hal-04066082

[3] Fiquet, AL.; Paoletti, B; Ottavy, X; Brandstetter, C; Schneider, A. Experiments on tuned UHBR open-test case fan ECL5/CATANA : stability limit. Journal of Engineering for Gas Turbines and Power, 2023, pp.1-12., 10.1115/GT2023-102537, hal-04066078v2