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Lummer, Markus and Hepperle, Martin and Delfs, Jan Werner and Kresse, Nikolai (2004) Towards a Tool for the Noise Assessment of Aircraft Configurations. In: Proceedings of the 8th ASC-CEAS aeroacoustics workshop. 8th ASC-CEAS Workshop "Aeroacoustics of new aircraft and engine configurations", 2004-11-11 - 2004-11-12, Budapest, Ungarn. ISBN 963 420 842 8.
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Abstract
This lecture deals with the first steps of the development of a ray tracing code for the assessment of acoustic shielding effects of engine installations at new aircraft configurations. A low noise aircraft concept (LNA), developed by DLR in the project "Konfigurationen 2020" within Germany's nationalaeronautical research program III is used as a test case for acoustic shielding along with the B747 aircraft representing a conventional configuration. The basic acoustic ray equations with and without taking a mean flow field into account are given. The emphasis is laid on the details of the numerical algorithm. So far, only the reflection of rays at the geometry is implemented in the code.
| Item URL in elib: | https://elib.dlr.de/126005/ | ||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
| Title: | Towards a Tool for the Noise Assessment of Aircraft Configurations | ||||||||||||||||||||
| Authors: |
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| Date: | 2004 | ||||||||||||||||||||
| Journal or Publication Title: | Proceedings of the 8th ASC-CEAS aeroacoustics workshop | ||||||||||||||||||||
| Refereed publication: | No | ||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| ISBN: | 963 420 842 8 | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | acoustic shielding, low noise aircraft, acoustic ray tracing | ||||||||||||||||||||
| Event Title: | 8th ASC-CEAS Workshop "Aeroacoustics of new aircraft and engine configurations" | ||||||||||||||||||||
| Event Location: | Budapest, Ungarn | ||||||||||||||||||||
| Event Type: | Workshop | ||||||||||||||||||||
| Event Start Date: | 11 November 2004 | ||||||||||||||||||||
| Event End Date: | 12 November 2004 | ||||||||||||||||||||
| 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 | ||||||||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Technical Acoustics | ||||||||||||||||||||
| Deposited By: | Delfs, Prof.Dr. Jan Werner | ||||||||||||||||||||
| Deposited On: | 29 Jan 2019 14:58 | ||||||||||||||||||||
| Last Modified: | 24 Apr 2024 20:29 |
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