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The Parametric Aircraft Noise Analysis Module - status overview and recent applications

Bertsch, Lothar and Guerin, Sebastien and Looye, Gertjan and Pott-Polenske, Michael (2011) The Parametric Aircraft Noise Analysis Module - status overview and recent applications. 17th AIAA/CEAS Aeroacoustics Conference (32nd AIAA Aeroacoustics Conference), 5.-8. June 2011, Portland, Oregon, USA.

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Abstract

The German Aerospace Center (DLR) is investigating aircraft noise prediction and noise reduction capabilities. The Parametric Aircraft Noise Analysis Module (PANAM) is a fast prediction tool by the DLR Institute of Aerodynamics and Flow Technology to address overall aircraft noise. It was initially developed to (1) enable comparative design studies with respect to overall aircraft ground noise and to (2) indentify promising low-noise technologies at early aircraft design stages. A brief survey of available and established fast noise prediction codes is provided in order to rank and classify PANAM among existing tools. PANAM predicts aircraft noise generated during arbitrary 3D approach and take-off flight procedures. Noise generation of an operating aircraft is determined by its design, the relative observer position, configuration settings, and operating condition along the flight path. Feasible noise analysis requires a detailed simulation of all these dominating effects. Major aircraft noise components are simulated with individual models and interactions are neglected. Each component is simulated with a separate semi-empirical and parametric noise source model. These models capture major physical effects and correlations yet allow for fast and accurate noise prediction. Sound propagation and convection effects are applied to the emitting noise source in order to transfer static emission into aircraft ground noise impact with respect to the actual flight operating conditions. Recent developments and process interfaces are presented and prediction results are compared with experimental data recorded during DLR flyover noise campaigns with an Airbus A319 (2006), a VFW-614 (2009), and a Boeing B737-700 (2010). Overall, dominating airframe and engine noise sources are adequately modeled and overall aircraft ground noise levels can sufficiently be predicted. The paper concludes with a brief overview on current code applications towards selected noise reduction technologies.

Document Type:Conference or Workshop Item (Paper)
Title:The Parametric Aircraft Noise Analysis Module - status overview and recent applications
Authors:
AuthorsInstitution or Email of Authors
Bertsch, Lotharlothar.bertsch@dlr.de
Guerin, Sebastiensebastien.guerin@dlr.de
Looye, Gertjangertjan.looye@dlr.de
Pott-Polenske, Michaelmichael.pott-polenske@dlr.de
Date:8 June 2011
Refereed publication:No
In ISI Web of Science:No
Status:Published
Keywords:aircraft noise prediction, aircraft acoustics, low-noise technology, noise abatement procedures, low-noise aircraft design, noise source modeling
Event Title:17th AIAA/CEAS Aeroacoustics Conference (32nd AIAA Aeroacoustics Conference)
Event Location:Portland, Oregon, USA
Event Type:international Conference
Event Dates:5.-8. June 2011
Organizer:American Institute of Aeronautics and Astronautics (AIAA)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignement
DLR - Research theme (Project):L -- no assignement
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Dr.-Ing. Lothar Bertsch
Deposited On:14 Jun 2011 08:46
Last Modified:12 Dec 2013 21:18

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