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Article

Aeroacoustics Assessment of an Hybrid Aircraft Configuration with Rear-Mounted Boundary Layer Ingested Engine

1
CIRA Italian Aerospace Research Center, 81043 Capua, Italy
2
DLR German Aerospace Center, Engine Acoustics, 10623 Berlin, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Roberto Camussi
Appl. Sci. 2021, 11(7), 2936; https://doi.org/10.3390/app11072936
Received: 11 February 2021 / Revised: 17 March 2021 / Accepted: 22 March 2021 / Published: 25 March 2021
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. View Full-Text
Keywords: aeroacoustics; boundary layer ingestion; acoustic scattering; engine noise aeroacoustics; boundary layer ingestion; acoustic scattering; engine noise
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MDPI and ACS Style

Petrosino, F.; Barbarino, M.; Staggat, M. Aeroacoustics Assessment of an Hybrid Aircraft Configuration with Rear-Mounted Boundary Layer Ingested Engine. Appl. Sci. 2021, 11, 2936. https://doi.org/10.3390/app11072936

AMA Style

Petrosino F, Barbarino M, Staggat M. Aeroacoustics Assessment of an Hybrid Aircraft Configuration with Rear-Mounted Boundary Layer Ingested Engine. Applied Sciences. 2021; 11(7):2936. https://doi.org/10.3390/app11072936

Chicago/Turabian Style

Petrosino, Francesco, Mattia Barbarino, and Martin Staggat. 2021. "Aeroacoustics Assessment of an Hybrid Aircraft Configuration with Rear-Mounted Boundary Layer Ingested Engine" Applied Sciences 11, no. 7: 2936. https://doi.org/10.3390/app11072936

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