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Aircraft noise assessment of next-generation narrow-body aircraft

Zellmann, Christoph and Bertsch, Lothar and Schwab, Olivier and Wolters, Florian and Delfs, Jan Werner (2019) Aircraft noise assessment of next-generation narrow-body aircraft. In: Inter-Noise 2019. Inter-Noise 2019, 16.-19. Juni 2019, Madrid, Spanien.

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Official URL: http://internoise2019.org/index.html


A new generation of aircraft types equipped with modern high-bypass-ratio turbofans (such as A320neo) is currently introduced to the global air traffic, promising significant reductions in fuel consumption and engine noise. In only three years, over 1,000 new aircraft were delivered and more than 11,000 are already ordered. Furthermore, new technologies and concepts are under development to simultaneously reduce the airframe noise. In this paper, a typical single-runway medium-sized airport, dominated by movements of narrow-body aircraft, is assessed for the noise impact of new technology aircraft. Four future scenarios are compared to the reference year 2015. The scenario 2025 assumes a share of 40% next generation aircraft, for those aircraft types where a successor is foreseeable, i.e., featuring high-bypass-ratio turbofans. For scenario 2035, a share of 70% of these next generation aircraft is assumed. It was found that such a modification of the future aircraft fleet reduces the sound exposure despite the growth in the air traffic. Finally, two new low-noise aircraft concepts with additional low-noise airframe technology and engine noise shielding were introduced to predict the noise reduction potential for the far future. These novel aircraft showed a strong effect on the noise contours with further reductions in the affected areas of up to 37%. The presented results are an application of the recently developed simulation process between DLR and Empa to include existing and new aircraft types in large scenario noise studies.

Item URL in elib:https://elib.dlr.de/126914/
Document Type:Conference or Workshop Item (Speech)
Title:Aircraft noise assessment of next-generation narrow-body aircraft
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Zellmann, ChristophEMPA/CH-Abt. LärmbekämpfungUNSPECIFIEDUNSPECIFIED
Bertsch, LotharUNSPECIFIEDhttps://orcid.org/0000-0003-2780-2858UNSPECIFIED
Delfs, Jan WernerUNSPECIFIEDhttps://orcid.org/0000-0001-8893-1747UNSPECIFIED
Date:June 2019
Journal or Publication Title:Inter-Noise 2019
Refereed publication:Yes
Open Access:No
In ISI Web of Science:No
Keywords:Aircraft, Low-noise Design, Noise Shielding, Scenario, PANAM, sonAIR
Event Title:Inter-Noise 2019
Event Location:Madrid, Spanien
Event Type:international Conference
Event Dates:16.-19. Juni 2019
Organizer:Spanish Acoustical Society –SEA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation (old)
Location: Braunschweig , Göttingen , Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, GO
Institute of Propulsion Technology > Engine
Institute for Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Winkels, Elisabeth
Deposited On:12 Jul 2019 10:24
Last Modified:12 Jul 2019 10:24

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