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Traub, Paul and Broszat, D. and Röber, Thomas and Wellner, Jens (2013) Exhaust (broadband) noise simulation of a realistic turbofan forced mixer by using a CFD/CAA-approach. In: 19th AIAA/CEAS Aeroacoustics Conference (34th AIAA Aeroacoustics Conference). 19th AIAA/CEAS Aeroacoustics Conference (34th AIAA Aeroacoustics Conference), 27.-29. Mai 2013, Berlin, Deutschland.
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Official URL: http://arc.aiaa.org/doi/abs/10.2514/6.2013-2297
Abstract
The growing demand of low noise civil aircraft brings out technical challenges which require the application of computational aeroacoustics (CAA) methods within the development process of jet engines. This paper focuses on the simulation of exhaust jet noise based on a realistic turbofan lobe-forced mixer configuration and operating condition. The present study aims at showing the ability of a Ffowcs Williams-Hawkings (FW- H) approach for solving the acoustical sources of a complex turbulent (sheared) flow and for predicting the far field (broadband) noise based on a Detached Eddy Simulation (DES). The evaluation of the prediction results by comparing with benchmark data yield some general guidelines given for model improvements.
| Item URL in elib: | https://elib.dlr.de/82666/ | |||||||||||||||
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| Document Type: | Conference or Workshop Item (Paper) | |||||||||||||||
| Title: | Exhaust (broadband) noise simulation of a realistic turbofan forced mixer by using a CFD/CAA-approach | |||||||||||||||
| Authors: |
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| Date: | May 2013 | |||||||||||||||
| Journal or Publication Title: | 19th AIAA/CEAS Aeroacoustics Conference (34th AIAA Aeroacoustics Conference) | |||||||||||||||
| Refereed publication: | Yes | |||||||||||||||
| Open Access: | Yes | |||||||||||||||
| Gold Open Access: | No | |||||||||||||||
| In SCOPUS: | No | |||||||||||||||
| In ISI Web of Science: | No | |||||||||||||||
| Status: | Published | |||||||||||||||
| Keywords: | CFD, Düse, Schallvorhersage, Strömungssimulation, CAA, Akustik | |||||||||||||||
| Event Title: | 19th AIAA/CEAS Aeroacoustics Conference (34th AIAA Aeroacoustics Conference) | |||||||||||||||
| Event Location: | Berlin, Deutschland | |||||||||||||||
| Event Type: | international Conference | |||||||||||||||
| Event Dates: | 27.-29. Mai 2013 | |||||||||||||||
| Organizer: | The American Institute of Aeronautics and Astronautics (AIAA) | |||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||
| HGF - Program: | Aeronautics | |||||||||||||||
| HGF - Program Themes: | Propulsion Systems (old) | |||||||||||||||
| DLR - Research area: | Aeronautics | |||||||||||||||
| DLR - Program: | L ER - Engine Research | |||||||||||||||
| DLR - Research theme (Project): | L - Virtual Engine and Validation Methods (old) | |||||||||||||||
| Location: | Köln-Porz | |||||||||||||||
| Institutes and Institutions: | Institute of Propulsion Technology > Numerical Methodes Institute of Propulsion Technology > Engine Acoustic Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering | |||||||||||||||
| Deposited By: | Wellner, Jens | |||||||||||||||
| Deposited On: | 20 Jun 2013 11:09 | |||||||||||||||
| Last Modified: | 31 Jul 2019 19:41 |
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