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Meyer, Robert and Tapken, Ulf and Klähn, Lukas and Behn, Maximilian and Lengyel-Kampmann, Timea (2024) Unsteady flow, turbulence and acoustic measurements on the counterrotating DLR turbo fan stage CIRSPMULTI, with and witout inlet distuortions. In: 69th ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition, GT 2024, GT2024 (124839). ASME Turbo Expo 2024. ASME Turbo Expo 2024, 2024-06-24 - 2024-06-28, London, UK. doi: 10.1115/GT2024-124839. ISBN 978-079188807-0.
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Official URL: https://asme-turboexpo.secure-platform.com/a/solicitations/223/sessiongallery/15256/application/124839
Abstract
Extensive aerodynamic and acoustic measurements were carried out on a counter-rotating turbofan (CRISP) stage under the influence of inlet distortions that are representative of the boundary layer ingestion of an engine embedded in the aircraft fuselage. The unsteady flow field was measured and analyzed using hot-wire anemometry upstream, between and downstream of the rotors, both with and without inlet distortions. Acoustic measurements were carried out using extensive microphone arrays on the intake and exhaust sides of the fan. This article presents exemplary measurement results, which show the significant effect of inlet distortions on turbulence and fan sound excitation.
| Item URL in elib: | https://elib.dlr.de/205605/ | ||||||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||
| Title: | Unsteady flow, turbulence and acoustic measurements on the counterrotating DLR turbo fan stage CIRSPMULTI, with and witout inlet distuortions | ||||||||||||||||||||||||
| Authors: |
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| Date: | 24 June 2024 | ||||||||||||||||||||||||
| Journal or Publication Title: | 69th ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition, GT 2024 | ||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||||||
| Volume: | GT2024 | ||||||||||||||||||||||||
| DOI: | 10.1115/GT2024-124839 | ||||||||||||||||||||||||
| Publisher: | ASME Turbo Expo 2024 | ||||||||||||||||||||||||
| Series Name: | GT2024-124839; | ||||||||||||||||||||||||
| ISBN: | 978-079188807-0 | ||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||
| Keywords: | Engine acoustics; inlet distortion; boundary layer ingestion, broadband noise, turbulence measurement, unsteady flow, fan noise, tonal noise | ||||||||||||||||||||||||
| Event Title: | ASME Turbo Expo 2024 | ||||||||||||||||||||||||
| Event Location: | London, UK | ||||||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||||||
| Event Start Date: | 24 June 2024 | ||||||||||||||||||||||||
| Event End Date: | 28 June 2024 | ||||||||||||||||||||||||
| Organizer: | ASME Turbo EXPO 2024 | ||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||||||
| HGF - Program Themes: | Clean Propulsion | ||||||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||||||
| DLR - Program: | L CP - Clean Propulsion | ||||||||||||||||||||||||
| DLR - Research theme (Project): | L - Future Engines and Engine Integration | ||||||||||||||||||||||||
| Location: | Berlin-Charlottenburg | ||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Propulsion Technology > Engine Acoustic | ||||||||||||||||||||||||
| Deposited By: | Meyer, Dr.-Ing. Robert | ||||||||||||||||||||||||
| Deposited On: | 12 Aug 2024 10:51 | ||||||||||||||||||||||||
| Last Modified: | 14 Nov 2024 13:53 |
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