elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Exhaust (broadband) noise simulation of a realistic turbofan forced mixer by using a CFD/CAA-approach

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.

[img]
Preview
PDF
603kB

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/
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:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Traub, PaulPaul.Traub (at) mtu.deUNSPECIFIED
Broszat, D.MTU Aero Engines GmbH, MünchenUNSPECIFIED
Röber, ThomasUNSPECIFIEDUNSPECIFIED
Wellner, JensJens.Wellne (at) dlr.deUNSPECIFIED
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

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.