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Petrosino, Francesco and Barbarino, Mattia and Staggat, Martin (2021) Aeroacoustics Assessment of an Hybrid Aircraft Configuration with Rear-Mounted Boundary Layer Ingested Engine. Applied Sciences, 11 (7). Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/app11072936. ISSN 2076-3417.
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Official URL: https://www.mdpi.com/2076-3417/11/7/2936
Abstract
Hybrid electric propulsion is a promising solution to reduce aircraft emissions, thus improving the sustainability of the air transport. In this work, a hybrid aircraft configuration with a rear-mounted boundary layer ingestion (BLI) engine has been investigated. The partial embedding of the engine into the fuselage generates a distortion of the ingested inflow causing additional tonal and broadband BLI noise sources, and, at the same time, alters the existing one, such as the rotor–stator interaction noise (RSI). This work is focused on the tonal RSI noise modeling, with and without the distortion generated by the BLI, and the far-field propagation including the acoustic masking contribution due to the engine–fuselage integration. As the main result, this work shows the contributions of BLI and the engine–aircraft integration on the RSI noise. Both effects should be properly taken into account in the early aircraft design stage for an effective noise reduction even at ground level.
| Item URL in elib: | https://elib.dlr.de/141535/ | ||||||||||||||||
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| Document Type: | Article | ||||||||||||||||
| Title: | Aeroacoustics Assessment of an Hybrid Aircraft Configuration with Rear-Mounted Boundary Layer Ingested Engine | ||||||||||||||||
| Authors: |
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| Date: | 25 March 2021 | ||||||||||||||||
| Journal or Publication Title: | Applied Sciences | ||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||
| Open Access: | Yes | ||||||||||||||||
| Gold Open Access: | Yes | ||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||
| Volume: | 11 | ||||||||||||||||
| DOI: | 10.3390/app11072936 | ||||||||||||||||
| Publisher: | Multidisciplinary Digital Publishing Institute (MDPI) | ||||||||||||||||
| Series Name: | Applied Sciences | ||||||||||||||||
| ISSN: | 2076-3417 | ||||||||||||||||
| Status: | Published | ||||||||||||||||
| Keywords: | aeroacoustics, boundary layer ingestion, acoustic scattering, engine noise | ||||||||||||||||
| 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, L - Virtual Engine | ||||||||||||||||
| Location: | Berlin-Charlottenburg | ||||||||||||||||
| Institutes and Institutions: | Institute of Propulsion Technology > Engine Acoustic | ||||||||||||||||
| Deposited By: | Staggat, Martin | ||||||||||||||||
| Deposited On: | 12 Apr 2021 10:59 | ||||||||||||||||
| Last Modified: | 24 Apr 2023 13:53 |
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- Aeroacoustics Assessment of an Hybrid Aircraft Configuration with Rear-Mounted Boundary Layer Ingested Engine. (deposited 12 Apr 2021 10:59) [Currently Displayed]
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