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Flyover noise evaluation of low-noise technologies applied to a blended wing body aircraft

LeGriffon, Ingrid and Bertsch, Lothar and Centracchio, Francesco and Weintraub, Daniel (2022) Flyover noise evaluation of low-noise technologies applied to a blended wing body aircraft. In: Inter-noise 2022, pp. 1-12. Inter-noise 2022, 2022-08-21 - 2022-08-24, Glasgow. ISBN 978-1-906913-42-7.

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Official URL: https://internoise2022.org/wp-content/uploads/2022/08/Internoise_Proceedings.pdf


In the frame of the European research project ARTEM (Aircraft noise Reduction Technologies and related Environmental iMpact), new aircraft architectures and alternative propulsion systems, e.g. Blended Wing Body (BWB) and geared turbofan engine concept, are investigated, as well as innovative noise reduction technologies such as metamaterials and low noise high-lift device systems. A noise impact assessment has been performed on a long-haul BWB concept developed by Roma Tre University, using the System Noise Prediction Tools of ONERA (CARMEN) and DLR (PANAM). First, shielding effects on the main noise emission sources are discussed, through installation effects hemispheres at relevant third-octave band frequencies around the aircraft. Based on the shielding assessment, detailed take-off and landing procedures are simulated for several aircraft configurations. Two alternative motorisations of the BWB are evaluated. Finally, the most promising low noise technologies developed in the frame of ARTEM are applied, and their impact on the aircraft’s overall noise levels on the ground is discussed. It can be demonstrated how the specific aircraft configuration, the engine type and the additional low-noise technology result in a significant overall noise reduction. An accompagning conference paper presents flyover auralisations based on these total aircraft noise calculations.

Item URL in elib:https://elib.dlr.de/188020/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Vollbeitrag mit Paper
Title:Flyover noise evaluation of low-noise technologies applied to a blended wing body aircraft
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Bertsch, LotharUNSPECIFIEDhttps://orcid.org/0000-0003-2780-2858UNSPECIFIED
Date:August 2022
Journal or Publication Title:Inter-noise 2022
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-12
Keywords:aircraft noise, simulation, prediction, PANAM
Event Title:Inter-noise 2022
Event Location:Glasgow
Event Type:international Conference
Event Start Date:21 August 2022
Event End Date:24 August 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Air Transportation and Impact
DLR - Research area:Aeronautics
DLR - Program:L AI - Air Transportation and Impact
DLR - Research theme (Project):L - Air Transport Operations and Impact Assessment
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, GO
Deposited By: Carter, Beatrice
Deposited On:18 Nov 2022 14:02
Last Modified:24 Apr 2024 20:49

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